These earphones are awesome for sound quality and battery. If you are buying for this you can't go wrong.
The headphones are very uncomfortable. I have changed tips to suit my ear but after 50 mins of use they are very painful in ear. They are also very heavy so I think that adds to the uncomfortable feeling.
The case is so big and heavy that it feels like you are carrying a mini phone. Case is the reason I am not able to carry them around and have to leave them at home all the time.