The dance floor isn't quite big enough for large parties. It's long and narrow so progressive dances become very problematic. It's more like a bowling ally than a dance floor! This only becomes a problem when medium sized crowds are there -- like 15 couples on the floor simultaneously.
Ambiant is a good place to take small group lessons or privates because in addition to the ballroom floor there are three smaller rooms for private lessons.
The sound system is substandard and gets worse as the size of the party grows.
The owner is a knowledgeable dance instructor and his staff are very capable. He is very enthusiastic about the studio and that counts for a lot when it comes to building a dance community.
The location is odd but once you know where it is, it's easy to find right off the 101.
The Scottsdale area should have a ballroom that can provide for 100+ dancers but Ambiant isn't it.