What kind of bad things have you heard?
I have the Diamond 10.2 bookshelves as my main L/R speakers in a 2.1 system (with a Klipsch sub). I run them with a 50wpc Marantz NR1602. I mostly use digital music sources (FLAC, MP3, WMA, Pandora, YouTube...etc). I listen to everything from folk to jazz to classical to rap to metal and back again.
I've been very satisfied with how this little system handles music. Even in "Direct" and "Pure Direct" mode where the subwoofer is by-passed - these little bookshelves seem to go down quite low for most needs. I think they would be hard to beat at their price point.
Aesthetically, they have a good wife-pleasing characteristic with their curved cabinets - they are quite a nice looking speaker as far as it goes. This was a factor in my choice, I must admit.
I've struggled with some CATV broadcasts that have seemed too bass-heavy, but I think that is a combination of the source material and room acoustics. I can change the channel, or play a Blu-Ray, and the sound comes right back to life. Yet, with that said, I am pursuing room treatment options and REW measurements before I complete my Wharfedale 5.1 setup (with the 10.CS and 10.SR's).
Some times the used market makes me groan as I see a pair of nice-but-used floor-standers that could potentially have been an upgrade for me at the same price as my 10.2's (plus stands). I've even seen the 10.5 speakers on sale at a competitive price. If I could do it all over again, I might have gone with the 10.5's as my fronts. But on the whole, I'm happy with what I got for the money I paid.