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.