I finally did it... I made the trek to Mesa to take a Karve class! I'd heard about these classes before and taken similar classes when I've traveled to San Fran, Chicago, and Dallas but the Valley doesn't have a Bar Method Studio or Exhale Spa, so Karve is the next best thing.
The class I took was an hour long. It was a full body workout and I felt great throughout and afterwards. Alli was the instructor. She did a good job at motivating us and correcting form here and there. Music was ok - not amazing but not horrible either. I bought a 3-pack new client special package (for $45), so I'll be back a couple more times. If I like it enough, I'll go more when their Scottsdale location opens up in January... I'll update before then!
If you're looking for a different kind of low impact sculpting workout, and you don't mind the drive to Mesa, go check out Karve! Maybe I'll see you there.