My Gym @ Jurong East is listed as a gym at 3 Gateway Drive, #04-39 Westgate, Jurong East, Singapore. It holds a 4.6 rating from 83 Google reviews.
A good gym is judged less by its equipment than by how it is kept and run. Look at whether the floor and changing areas are clean, whether the machines are maintained and spaced so you can move between them, and whether the equipment you need is free at the times you train. Many members find that a trial visit tells them more than any listing, so try the place at the hour you would really train. Ask how beginners are guided, and whether staff can adjust exercises for injuries or older members. Check the membership and cancellation terms before you sign anything.
Westgate is a large mall in Jurong East, close to the MRT and bus interchange, so the gym suits people who train before or after shopping or work nearby. For anyone in the neighbourhood, My Gym at Westgate on Gateway Drive is worth a visit to see whether it fits your routine.