Summary: When I tried the AKG K3003 and disliked the clinical presentation, I decided to try another high-praised universal IEM - the Shure SE535. I've read a lot about how these things have "bottomless bass", "fantastic mids" and "lots of detail".
Well, one thing is true. The midrange is great.
Pros: Natural, grain-free midrange. Good bass response. Fairly comfortable
Cons: IEM soundstage. lack of treble. Lack of punch.
Summary: I was looking for an excellent universal IEM with multiple drivers to fit my portable listening needs. Ideally, I would have my beloved LCD-2's in a portable package. I have become addicted to the effortless brightness of those headphones and their versatility.
Pros: Details are plentiful, especially in the mids
Cons: Treble Roll-Off, Bass lacks punch, price vs. sound quality