I bought these specifically to use for Power 90 (if you're not familiar with this, it's basically a less intense version of P90X). I first tried bare feet (no support), then my running shoes (too much control for side movement), and finally my regular street athletic shoes (not enough stability). I read through lot of forum posts and articles and determined a cross trainer would be best. After looking at tons of reviews on Amazon and others, I narrowed my decision down to these and Asics Envigor TR. Because of Amazons' great return policy for shoes, I decided to order both and decide which I like better.  Ultimately, while I thought the Envigor looked better, the Blur33s were a better fit and were what I kept.

These meet all of my needs! My foot is slightly wide across the toes, flat, and narrow in the heel. I normally get a half size larger in running shoes, but these fit great in my normal size 10. The laces go through both the mesh and the overlay, which I think would give a better fit to a variety of feet. I know some complained about the shoe lace length; I find I can either use the last hole or double-knot these but not both. So far I haven't had issues with the laces coming undone, so just using the last hole is fine with me.

I love that these work with my orthortics but still offer enough support on their own; typically I use orthotics for cardio but not for sculpting/ weight training. These shoes are light, yet supportive. The tread is not too grippy for in-home use without making me worried about slipping.  These shoes would be great for gym use too. I wouldn't recommend these for running; there are better shoes out there for that.