Coming from the ATH- m50's, there were a HUGE upgrade. The comfort was a 10 compared to the m50s and the sound quality (granted i am using an e7 and e9 now) is top notch. Sounds amazing. Great bass. The only thing i dont like is that both ears have the wires coming in, where as the m50s only had it on one side.. but being such a small and stupid thing i dont like i still LOVE these headphones. great deal