Ark Grit Marymount is listed as a gym at Block 255 Bishan Street 22, #B1-462, Bishan, Singapore. It holds a 4.0 rating from 4 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.
Bishan Street 22 is a residential street in Bishan, with parks and the MRT interchange nearby, so a gym here suits people who train close to home. For anyone in the neighbourhood, Ark Grit at Marymount is worth a visit to see whether its hours and equipment suit your routine.