Pros: Great Quality of bass, comfortable fit, isolation, sleek look
Cons: mids and highs a little flat, the cord keeer.
Theses are fantastic! Absolutely Stunning.
The bass is clear and detailed. It extends well and has very good speed. There is just the right amount too. I would consider myself to be a basshead, having sought after bass themed iems constantly. i've owned the original turbines and sennheiser cx 150 and cx 475 (directly marketed for supreme bass.)
Compared to the original Turbines and the two sennheisers there isn't as much impact but the clarity and extension is far far far more superior and more than makes up for that. listening to dubstep with theses is a thrill. In my opinion, if you had to give up one attribute of bass i'd say impact is the one to sacrifice.
The SE215's mids are missing a little detail, but overall satisfying. the turbines very recessed mids were much more disappointing. the senns both fall short to the 215's and i would say come close to if not on par with the turbines mids.
highs sound a bit small or short. but the detail is there. i think that the highs being that way makes these have virtually no sibilance or hissing. although, listening to heavy metal i think needs better separation for that genre to my ears. acoustic, indie, soundscapes all sound excellent through these.
the comfort is just excellent. not tiring and your not fijiting or frequently adjusting these at all. once they're in, they're in. the shure foam tips are insanely good. i prefer them to the comply foams. one bad thing is the keeper on the cord is very difficult to move up and down. its pretty stupid. it feels like your gonna rip or something. i also think the cord could be made of better material. there are no microphonics at all though. oh yeah the isolation is some of the best i've expirenced. i was 10 ft from my wife in my living room without the tv on or anything and couldn't really hear her talking to me..lol.
Bottom line, these amazed me. i want to commend shure on their take on dynamic driver iems. owning the se530's i would say these are certainly behind them in the mids and highs( not nearly enough to justifiy the price jump) and miles ahead in the bass department. these smoke the original turbines, making them seem outclassed and silly. actually i do like the turbines styling and material choice better than the se215, but thats ALL.