i own ie8, they are already burned in for 200 hours and i can say they are no miracle (event listening for flac`s with emu 0404 sound card). yes they really do sound superb compared to iphones stock headphones, but still sound is "small", it`s like listening to miniature orchestra in a bucket. well it does have wide and "correct" soundstage, depending on a recording you can pin point there sound comes from, but it does not trick you into thinking that you are listening to real orchestra. if you had to point there for example triangle is in reality you would reach out your hand to some place on stage, but listening to these - you would point somewhere near in front of your eyes. and yes reviewer is right to some point - i think its something wrong with sound in general. bass is good, but its to much of it, mids are really weakes point in my opinion, hights are ok - soft, crisp&clear, but still could be better. fit, design and cable are really superb, you could not as for more.
i never listened to shure se530 or ultimate ears triple fi, westones 3, but if i had to buy a pair of iem`s now i would probably go for shure se530.