OS Performance Center, accessible through oliversebastian.dk, is a private personal training facility located in Østerbro, Copenhagen. The company specializes in personalized training programs tailored to individuals seeking to improve their fitness levels, whether through weight loss, muscle gain, or sport-specific training. With a focus on creating a supportive and trusting environment, OS Performance Center provides clients with the opportunity to train in discreet settings, ensuring privacy and comfort during their fitness journey. The company's trainers possess a background in sports science from the University of Copenhagen, along with qualifications in life and business coaching. This expertise allows them to offer comprehensive guidance and coaching to clients of all fitness levels. By emphasizing a motto of "movement with consideration," OS Performance Center integrates various training methods and psychological strategies to help clients achieve sustainable results. Target customers include individuals who may be new to exercise or those looking to optimize their physical performance in a safe and encouraging atmosphere.
OS Performance Center receives overwhelmingly positive feedback from its clients, particularly praising the personal trainer Oliver. Reviewers highlight his competence, attentiveness, and ability to tailor training programs to individual needs, especially for those with past injuries or specific goals.
Many express gratitude for his supportive and motivating approach, noting that he effectively challenges them without overwhelming them. Customers appreciate the personalized and professional training experience, which has led to significant improvements in their fitness and well-being. The consistent recommendation of Oliver as a trainer underscores the high satisfaction levels among clients. Overall, the sentiment is exceptionally positive, with no negative feedback reported.
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 | 5.0 | 21 | 100% | — | ● Low |
Monthly average rating from reviews written by people · latest review Sep 2025.
| Month | Average | Reviews |
|---|---|---|
| Sep 25 | 5.0 | 1 |
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 21 most recent reviews.
“Jeg var kørt fast i de samme øvelser”
Same method for every company: overall rating, legitimacy checks, the average rating of reviews mentioning each area and the 6-month trend · Sports & Recreation.
| Company | Overall | Legit | Trend | Reviews |
|---|---|---|---|---|
 | 5.0 out of 5 (good) | 100 out of 100 | — | 21 |
| 5.0 out of 5 (good) | 100 out of 100 | 0% | 343 | |
| 2.5 out of 5 (poor) | 100 out of 100 | — | 85 | |
| 1.7 out of 5 (poor) | 100 out of 100 | — | 60 | |
| 5.0 out of 5 (good) | 100 out of 100 | 0% | 43 |
Bottom line: OS Performance Center is #1 of 5 on overall rating in this group.
21 reviews of OS Performance Center. Filter by what matters to you.
Glæder mig til hver træning. Har opnået fantastiske resultater på kort tid. Tabt 4 kilo fedt på 8 uger og fået 2 kg muskler, på samme tids horisont. Oliver Sebastian er utrolig dygtig og professionel. Han er super god til at motivere. Laver varierede og velovervejede træninger. Udfordrer mig præcis, som jeg ønsker det. Virkelig et godt samarbejde 💪
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.
OS Performance Center, accessible through oliversebastian.dk, is a private personal training facility located in Østerbro, Copenhagen. The company specializes in personalized training programs tailored to individuals seeking to improve their fitness levels, whether through weight loss, muscle gain, or sport-specific training. With a focus on creating a supportive and trusting environment, OS Performance Center provides clients with the opportunity to train in discreet settings, ensuring privacy and comfort during their fitness journey. The company's trainers possess a background in sports science from the University of Copenhagen, along with qualifications in life and business coaching. This expertise allows them to offer comprehensive guidance and coaching to clients of all fitness levels. By emphasizing a motto of "movement with consideration," OS Performance Center integrates various training methods and psychological strategies to help clients achieve sustainable results. Target customers include individuals who may be new to exercise or those looking to optimize their physical performance in a safe and encouraging atmosphere.
This profile hasn't been claimed by the business owner.
