Nice, if they happen to fit your head.
Crutchfield Customer Review (What's this?)
These have surprisingly clean and accurate sound (my reference is the Grado SR325e, and the Focal is pretty good by comparison), and a nice soundstage for a closed headphone. Unfortunately, they seem to have been designed to fit one specific head, and no other. They suffer from very poor adjustability: no swivels on the earcups, and because the headband is plastic (or appears to be), you can't adjust the (very high) clamping force by flexing it as you can with a metal band. If it happens to fit you, you'll love it. Sadly, it wasn't comfortable for me.
Pros: Pleasing, accurate sound.
Cons: Either they fit or they don't.