As far as the replies u got is a best option but before that you should know that Gold's gym is for pure professional body builders. If u fall in the same category then its the best decision.

If u want to join a gym for weight loss then its not the wise decision. I would recommend Dallah Gym in Al Sadd behind UAE exchange center. Instructor Mr. Goerge give u a perfect work out for weight loss and then after some months you can go for Gold's Gym for professional weight training.

Regards.

Anwar