Bought one because it was on sale. Sound is really good it's like listening to a live concert though Bass sound is okay out of the box (i just use equalizer to boost it to my liking). i didn't feel uncomfortable when using it for long hours (maybe because i don't have big ears?) as other people reviewed it. When it comes to battery life? wow this is outstanding!! lasted for 7 days on a single charge with my average of 9hrs of usage a day and volume ranging from 35% - 100% depending of what music or videos I'm listening to. only one complain i have. sometimes when i pause something or not listening to any music, it tend to have some popping noise.