This gym is on Powstancow in Zabki, just east of Warsaw. It holds a 4.7 rating from 148 Google reviews, and the record is current, with reviews through April 2026.
One note on the name: the record says Weight Master Fitness Gym, but every reviewer calls it Master Gym. Worth knowing if you're searching.
All the reviews are in Polish. My translations are marked.
The Most Honest Five-Star Review I've Read Tonight
A member in January 2026 (translated from Polish): "This isn't a fancy Pinterest-style gym overlooking Krakowskie Przedmiescie Street, but a gym with a great location in Zabki, overlooking Powstancow Street. There's no marble flooring, fancy changing rooms, or vast open spaces, but there's enough space and equipment. It could use a bit of a refresh. A few things are glued here, a few things are falling off there, and some of the equipment is a bit worn. The atmosphere upon entry is definitely a huge plus. There's also a nice weight room further down."
Read that again. Five stars, and she tells you things are glued together and falling off.
That's the most useful review on this page precisely because she isn't selling anything. She's saying: the kit is worn, the place needs a refresh, there's no marble, and I'd still give it five stars because of how it feels to walk in.
If you want a polished club, she's told you plainly this isn't one. If worn equipment in a good room suits you fine, she's told you that too. I'd rather have one review like that than ten saying "great gym."
The Trainer Comes Up Twice
Two members, both in April 2026, name the same trainer.
One: "Working with trainer Przemek is a major advantage of this place. The workouts are professionally planned, tailored to individual goals, and conducted thoughtfully. The trainer pays attention to technique and real progress."
Another: "Trainer Przemek stands out for his extensive knowledge, dedication, and personalized approach to his clients. He effectively motivates and ensures proper technique, which translates into tangible results."
Two independent accounts in the same month, both stressing technique and individual programming rather than motivation alone.
I'll note the obvious: Przemek is a common Polish name and I've seen it on another record in this directory, at a different studio. I'm not going to assume they're the same person, because I've no evidence either way.
It Works For Older Members Too
A member in April 2024 (translated): "I really like Master Gym, it's a very welcoming fitness center not only for young people but also for seniors. The receptionists greet you warmly from the moment you walk in. The service is impeccable. It always smells nice."
"Not only for young people but also for seniors" is a real claim about who's on the floor, and it's not one many gyms earn.
A visitor in February 2024 (translated): "I stopped by for a workout while passing through, and I don't regret it. It's a very nice, intimate gym. Great equipment allows for workouts for every body part. The atmosphere is also very relaxed, and the receptionist was very nice and explained everything."
Someone dropping in while passing through, which suggests casual access exists. He doesn't say what it cost, and nobody else does either.
Hours
Monday to Friday, 06:00 to 23:00. Saturday and Sunday, 08:00 to 18:00.
Seventeen hours a day on weekdays is generous. The weekend closes at 18:00, which is the catch worth noting.
Who It's Not For
Anyone who wants new equipment and a polished fit-out. A member has already told you about the glue.
Anyone who trains late at weekends.
Powstancow 18A, 05-091 Zabki. Phone +48 537 351 515. There's no website on the record.
FAQ
What condition is the equipment in?
A member in January 2026 says some is worn, a few things are glued and a few are falling off. She gave five stars anyway.
Is it suitable for seniors?
A member says it's welcoming not only to young people but to seniors too.
What are the opening hours?
06:00 to 23:00 Monday to Friday, 08:00 to 18:00 at weekends.
Is it called Master Gym?
That's what every reviewer calls it. The record says Weight Master Fitness Gym.