I think the instructors are fantastic. They are upbeat, motivating and personable. I absolutely love their banter as they make sure you are having fun as you sweat away the weight. As many instructors as they have (they have a lot) I personally enjoy them all. They are very "correct" in making sure that a proper warmup and cooldown are available. The classes themselves are so varied. They have something for everyone no matter the level. They even cover pre-post natal which is rare. They have any type of exercise class you ever could dream up. On the site itself it is hard to find what you have already done so you can see if you want to do it again or avoid. A want to do later would be helpful. It would also be helpful for a more complete overview of which muscles will be worked in toning/pump categories. I do like the breakdown of what you do in each category. All in all a fantastic site to give you a different workout everyday and never get bored!!n They just offer so much.