Kinda disappointed as the transparent housing on my left IEM has fallen off and refuses to stay together after a year and a half of moderate use and always putting the headphones wrapped in the included carrying case. I would rather not glue it back together, I don't want to mess up anything in the housing and then completely lose my IEMs.
Other than the housing problem, these IEMs are great. The sound is really good for the price and market that they're geared towards. They are super comfortable too.
EDIT: Putting them on today at work, it appears now that the left IEM, no has no sense of highs. Listening to several rock songs that have guitar solos on several different platforms, I am not able to hear the same highs on the left that I do on the right side. Now pretty disappointed in these, I guess time to try the EDC3? Hopefully the durability on those is a lot better.