I have danced probably hundreds of miles in these things and love them.  They are not ballet slippers by a long shot, but they are comfortable and perfect for what I need.  I got a size up, but I should have purchased my size in W and left it at that - they're supposed to be a little tight, and stretch.  Other than laces that broke on the first wearing (my recommendation is to buy a package of laces to replace both with, and do it as soon as they come out of the box), and not quite enough padding in the heels to keep stomping on hardwood from stinging a little, I have no complaints.