I've been holding off the write this review because I wanted to give myself a good long time with these headphones before I broke them down. Starting off with look and comfort these are above par, the clear models give you the sense of technology added to the already quality given by them. At first I was skeptical about using IEM on a daily basis because my ears tend to be sensitive, but after just seconds of trying to figure out how to wear them properly they fit like a glow and with the right bit rated song these seemed to melt into my head, in other words I began to forget they were there. Although these are the least bass heavy of the SE models they create a very warming feeling sound stage even though there are pretty much flat response. I use them for about 2-3 hours a day and have so since the day I bought them, the burn in time was almost none existent and the build quality on these were quite remarkable. I'm very rough on my headphones and tend the throw them around and they've endured my torment for over a year. So overall I say for the right person who it's all about there heavy bass genres (ex. Techno, Hip-Hop, and Rap) then these headphones will serve there purpose and then some, they have yet to let me down and there level of quality blew me away with in seconds of wearing them.