I love Flywheel! I don't even live in North Scottsdale, but it's worth the 25 min drive for the amazing classes. I LOVE the competitive nature of the class, as well as being able to perfectly understand how hard I'm working (RPM x resistance). It definitely pushes me way harder than other spin classes. If you don't have cycle shoes, you get to use a pair for free every single class. Also, the actual studio is very nice with fresh fruit, lockers, and really clean showers. It's easy to park even when it's crowded at the mall because of the big, free garage next door.
I have taken classes from Vandon, Stephanie, and Dani. I really enjoyed all instructors, but I particularly love Dani's super positive attitude and great music.
They had a great deal for 10 classes for $150 and I love it so much I bought another 10 pack before the deal expired!