At $25, these are a ridiculous deal. I'll admit that I was one of the early adopters of these IEMs when I bought them over years ago at full retail ($199). Unless the build quality has changed, they are well built. I haven't had problems with filters breaking (started off with bassy but switched to neutral). The cable will still tangle but you can untangle in a matter of seconds. If you are looking for critical listening, move on as the sound is just not worth any more than $50. But as a throwaway pair that plan to use on-the-go without worrying about breaking or getting crushed in a bag/pocket, these are great. Of course, as usual, little reason to pick these up on Massdrop.