The x10s are not horrible until you say what is wrong with them.
Sorry, they have way too much bass. Bloated and muffled. You know how people here bash beats for having bass overload? It's worse than beats. Mids fly out the window with them. The XB1000, on the other hand, handles bass with more class. Other bass headphones I'd take over the X10 in an instant? HFI-2400, SRH750, K618/619, D5000, D7100.
Not to mention the headphones are plasticky, the design is over-done, build quality is nowhere near what it should be for $300 (although they can be had for much lower these days).