I think one of the biggest challanges we faced when first introducing the MVe chair classes to our members was Class Levels. We now have a system/pre-requisite in place that has dramatically improved the quality of the classes. Participants are required to have taken at least 4 beginner level chair classes or have had prior mat Pilates experience before entering into an intermediate class. Sounds like a no-brainer, but you wouldn't believe how many people think they're advanced after only one or two chair classes!