Well, the mids are okay for me...if I use iTunes in OS X, the mids are NOT ok, punk or guitar music just sounds "flat". The highs are not that bad, but, compared to some other speaker systems like Diamond, also not superb. They are very clear, yes, but I am missing a certain "punch", you know, when somebody plays the a electrical guitar in very high tones I miss a certain kind of sound...but well, it's a very clear tone, yeah...and I was able to get this special effect with a properly set equalizer in Audion and Quicktime! So I really can't wait to get iTunes 2, since IMHO the soundsticks just don't show what they can in the standard iTunes 1.1 config....the low level tones are great over here, I only had reposition and reconfigure (adjust bass volume) the iSub till I got a very good bass effect from it. All in all, I love this audio equipment
PS: back to the mids: I also am not that impressed by them, and I also don't wanna stress the importance of the equalizer any more, but when I use one, I can increase them a bit, so that they loose this "flat" feeling...
...then again, I am NOT IN ANY WAY a pro on this field, I used to play in a band so I know a bit about it and I know when something sounds good, but I don't now about all the theory behind it...