Pros: Excellent sound quality, good value
Cons: Minor build issues
These are my first pair of upper-mid tier IEMs, so I can't really compare these to anything else in their price range. I can say however, that they sound very good to my ears, with much better bass extension than my A151s, and a nice midrange and overall more balanced sound than my M50s. However, they don't have the world's best isolation, and there are some minor build issues, such as the plastic strain relief coming unglued from the housing, though it doesn't really move around and it's easily glued back on. In addition, the strain reliefs on the y-split and the plug are a bit stiff, since the cord is pretty springy (which can be a pro or con, based on preference), the strain reliefs aren't super necessary, but it can still be a bit annoying. Overall though, very recommended!