I went to the gym for the first time in a decade! The last time was high school aerobics, I think. I remembered why I don't really like them too. The hour- long gym class is only 50c which is a cheap enough price for me to return after a decade. I went to 'spinning' class which is riding on an exercise bike for one hour on really uncomfortable seats, listening to loud music while a Dutch guy yells out random stuff. It was so boring, I will not be back. It was my own fault really- what did I expect? I might try some other classes though.
Sengdara Fitness does look like a nice gym though ie it has a pool, massage, sauna and a restaurant. They have a guard to look after the bikes too. I think it's another foreigner hangout.