How common are air conditioner problems With this model and Mazdas in general?

What is your question?

Had compressor replaced 4 times. Entire system once, other issues occur every summer with MVP. Also have 2009 Mazda5, bought new from dealer, that needs compressor replaced. Dealership repairman says it's due to hot Florida weather & constantly using A/C- fine, for 2002 MVP which is my Florida car, but the 2009 is an upstate NY car. Any help will be appreciated.