I've been going to Arizona Combat Sports since February 2015 and I'm very grateful for the experience I've had.
I really enjoy their muy thai, grappling and BJJ classes. I've joined a lot of gyms in the past only to throw money in the wind because I stopped going after a few weeks. But I have finally found a series of workouts I genuinely look forward to with the benefit of gaining a lot of energy for my busy days and getting into better shape.
The coaches are helpful and patient; they provide different levels of drills for everyone in their classes. Pro or otherwise, everyone at the gym is very respectful--no intimidation or judgement here.
Logistically, their pricing is clearly-structured and reasonable, they are right off the 101 or 202 so it's easy to get to and the facility is well-kept.
ACS is a great place for those at any end of the spectrum--whether you're looking for top-notch trainers for your pro aspirations or just looking for a good (and really flippin' fun) workout to add to your day, they do a great job accommodating everyone's needs.