Rapidez en la entrega
Rapidez en la entrega

GroupSumi is a comprehensive review platform that provides consumers with insights into various businesses across multiple countries in Europe. Catering to shoppers from nations such as Belgium, Germany, Spain, and Sweden, the platform allows users to read and write reviews about their experiences with different companies, helping them make informed purchasing decisions. The company targets a diverse audience that includes everyday consumers seeking reliable feedback on products and services, as well as businesses looking to enhance their reputation through customer engagement. By facilitating open dialogues between consumers and businesses, GroupSumi aims to foster transparency and trust in the online shopping experience. The platform is accessible through various country-specific domains, ensuring localized content for its users.
GROUPSUMI receives predominantly positive feedback, with many customers praising the quick delivery times and the quality of the products. Reviewers frequently mention that their orders arrive promptly and are well-packaged, highlighting the efficiency of the service.
However, there are notable complaints regarding customer service and order fulfillment. Some consumers report issues with missing items and lack of communication, particularly when trying to resolve delivery problems. A few customers express frustration over delayed shipments and inadequate responses to their inquiries. Despite these concerns, the overall sentiment remains positive, with many appreciating the competitive pricing and professionalism of the company. Overall, GROUPSUMI is viewed favorably, though improvements in customer service could enhance the experience further.
Summary generated with AI from recent reviews
Each source counts by its number of reviews. Only reviews written by people are scored.
| Source | Rating | Reviews | Weight | 6-mo | Fake risk |
|---|---|---|---|---|---|
Trustpilot Imported Trustpilot reviews | 4.5 | 1,000 | 100% | -0.4 | ● Low |
Monthly average rating from reviews written by people · latest review Jul 2025.
| Month | Average | Reviews |
|---|---|---|
| Aug 24 | 4.7 | 38 |
| Sep 24 | 4.7 | 46 |
| Oct 24 | 4.5 | 48 |
| Nov 24 | 4.6 | 52 |
| Dec 24 | 4.6 | 63 |
| Jan 25 | 4.7 | 35 |
| Feb 25 | 4.8 | 54 |
| Mar 25 | 4.6 | 54 |
| Apr 25 | 4.6 | 66 |
| May 25 | 4.6 | 78 |
| Jun 25 | 4.3 | 74 |
| Jul 25 | 3.6 | 33 |
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 500 most recent reviews.
“Alles bestens , sofort Versand , Preise top, Service gut”
“Customer service says I have to wait till it’s shipped, reject the package at the door, and let them send it back”
500 reviews of GROUPSUMI. Filter by what matters to you.
Rapidez en la entrega
O produto veio danificado e ao ser devolvido,a empresa nunca recolheu o mesmo, assim foi enviado por mim suportando o custo, e a empresa diz que nunca recebeu e recusa a devoluçao do mesmo
Die Lieferung und die Bestellabwicklung mit GroupSumi funktionierten sehr gut. Die Lieferverfolgung sowie die Kommunikation mit der Spedition verliefen reibungslos. Die Montage der bestellten Warmwasserwärmepumpe erfolgte problemlos vor 5 Tagen und sie verrichtet ihre Arbeit bis jetzt sehr zufriedenstellend. Ein Problem habe ich jedoch mit der Bedieneinheit, die nicht unbedingt selbsterklärend ist. Hier wünsche ich mir für den Endverbraucher eine bessere Lösung. Was mich stört, die Temperaturanzeige kann nur im Expertenmodus ausgelesen werden. (warum nicht als Standard direkt im Display?) Die unterschiedlichen Möglichkeiten der Einstellungen gehen ebenfalls nicht genug in ihrer Erklärung in die Tiefe. Die beworbene WiFi Anbindung funktioniert nur mit einer Cozytouch Bridge, die auch nicht unbedingt in ihrer Bewertung gut abschneidet. Technisch dürfte es in der heutigen Zeit eigentlich kein Problem sein, solche Geräte mit einem vorhandenen WiFi Netz zu verknüpfen. Leider finde ich für diese Bridge auch überhaupt keine Informationen, was sie mir für Vorteile in Verbindung mit der Thermor Warmwasserwärmepumpe bringt. Sehr schade, werde ich wohl nicht kaufen. Würde hier seitens Thermor nachgebessert werden, wäre die Anlage perfekt. Dass sie sparsam das warme Wasser erzeugt, kann ich jedenfalls jetzt schon bestätigen.
Anyone can write a CrowdTrust review. People who write reviews have ownership to edit or delete them at any time, and they'll be displayed as long as an account is active.
I ordered some Tado radiator thermostats from them and there was no progress for more than 2 weeks. Products still not delivered I have requested a refund but doubt I will get it. EDIT: I got a refund, but will not recommend to use them in future
Rapidez y seriedad. Envío perfecto
Tarif et délai au top !
Plazo de entrega adelantado, respuesta inmediata en consultas.
suite à achat d'un chauffe-eau tombe en panne. Sous garantie mais pas de proposition d'échange, de remboursement ou réparation dans un centre agréé ou pas. Ils essaient de faire reporter la garantie sur le fabricant. Plus de réponse depuis.
Compre un equipo de aerotermia ferroli. Una vez instalado funciona correctamente. Se trata de un pedido de alto precio, y Mariona atendió todas mis dudas: un diez para ella. La única pega el transporte de ultima milla (Girona), pero eso ya no depende de Groupsumi. Ahora me falta la puesta en marcha por parte de Ferroli, a ver que tal
Fui bem atendido em tudo que precisei. Desde a compra a chegada da encomenda. Vendedores são prestativos e a empresa cumpre os prazos de entrega. Fiquei satisfeito - obrigado
Entregado en plazo adecuado
Tudo correcto
Ottimo prodotto ...arrivato tranquillo....forse un po' troppo tempo .ma venendo dalla spagna..penso sia normale..
Todo perfecto
Buona gestione dell'ordine.
Très bien passé envoie rapide
Parfait , exelent
GroupSumi is a comprehensive review platform that provides consumers with insights into various businesses across multiple countries in Europe. Catering to shoppers from nations such as Belgium, Germany, Spain, and Sweden, the platform allows users to read and write reviews about their experiences with different companies, helping them make informed purchasing decisions. The company targets a diverse audience that includes everyday consumers seeking reliable feedback on products and services, as well as businesses looking to enhance their reputation through customer engagement. By facilitating open dialogues between consumers and businesses, GroupSumi aims to foster transparency and trust in the online shopping experience. The platform is accessible through various country-specific domains, ensuring localized content for its users.
This profile hasn't been claimed by the business owner.