Best Gyms in Milan or CrossFit

I will be moving to Milan very soon and am looking for a nice gym.  Cardio equipment, free weights, a crossfit program (or even just a crossfit place is fine, too) and spinning are what I need.  I don't need anything fancy like a spa included in the program. 
Does anyone have recommendations of either good OR bad places? 
It looks like most are running about 100 Euros per month, require a medical certificate that I can get there...and I believe I need a fiscal code before I can join.

Hello,
The best option in Milan is Virgin Active (there are few of them everywhere in the city center and suburbs). It is quite expensive but obviouslyi it depends on how much time you spend there.
Other options are GetFit, Downtown, Healthcity and others. You can compare prices and locations and then decide.
I kindly suggest you to avoid 20hours: it is very cheap, undeniable, but it's always crowded and sometimes dirty.

Enjoy your stay in Milan, it's a magic city!

Bye