I had a ouidad cut done by Ana in NYC. It went very well and it was literally the best hair day I've ever had. Even though she showed me step by step how to replicate the look (which was totally easy in theory) I could never make it look the same, even when using the same products. But it still looked good.
I'd recommend the cut to people who have thick hair. I don't have thick/dense hair at all and while my hair looked fine in wash n gos, when I pulled it into a ponytail or flat ironed it was super duper thin. Another con was the frizz I got when the cut started growing out. Apparently that's a common "side effect" from those cuts if you don't keep getting them. It took me years to grow the frizz out.
Blame it on the cell phone...