This is not a rant, it's just friendly feedback.
I used to do about 6-7 classes a week (pump, step and attack) for about four years. I was committed because the instructors at the gym were committed. One in particular was full of energy and treated participants with respect. Now I've done my last class and will stick to doing weights and running from here on in.
Why?
Lack of the above mention respect and commitment. For example, when there is an instructor workshop on, classes at my gym just get cancelled at the last moment and we all get sent home.
So my feedback to instrctors is to shown some respect and commitment to your participants and they will keep coming back.
BTW Instrctors that ask the class for feedback don't need it, the ones that don't ask often do.