Big Brothers is a gym at 249 Lavender St., Kallang, Singapore. Google reviewers rate it 4.8 out of 5, from 563 reviews, a strong result for a gym.
A good gym is judged less by its equipment list than by how busy it gets and how well it is kept. Visit at a few different times of day before you commit to a membership, and look at whether the machines are spaced so you are not standing in someone else's way. Ask about locker access, shower facilities and whether you can use the space without a booking. Many regulars find that a short induction on the machines saves time and avoids awkward mistakes on the first visit. Check the contract terms for freezing or cancelling, since these vary more than the monthly fee suggests.
The gym is on Lavender Street in Kallang, an area with a good range of places to eat within easy reach, so it suits people living or working nearby.