Is this gym really open 24 hours? a few of my friends said it is not and I see one of the comments says it was closed at 5:30 p.m.

No its not open 24hrs but it will be soon.

They typically open at 5am on weekdays but it depends on the trainer. They try to keep it open as many hours as possible. I've been there as early as 5am and stayed as late as 6:30 pm. The trainers are pretty flexible that as long as someone is there, you can go and workout, you just need to communicate.

No it isn't, they open at 5a.m.