Dark Elf trilogy is quite good, as the first examination of drow culture, and a great backstory to Drizzt. If memory serves, there wasn't much angst, either. The Icewind Dale trilogy wasn't bad either. After that, quality drops and repetition rises; people appear to die, Drizzt gets angry and kills other people, dead people end up alive through some plot device. If Salvatore had restrained himself a bit more and concluded the series at, say, 12 books, it would have been much better.
However, such an enormous quantity of novels has produced a few gems. The most notable is 'Servant of the Shard'. While you'll have to wade through all the books preciding it (or just read a synopsis and spoil 'em-not too great a loss), it's a very good book about his best character, Artemis Entreri. He's an assassin, Drizzt's semi-nemisis (who he's fought way too many times with no real point except to fill space), and a generally cool guy who's somewhere between villian and anti-hero. Unfortunately, he basically disappears in the latest trilogy in favor of Drizzt, higher bodycounts, and heavy doses of angst.
As for the latest trilogy, I give it a definite 'meh'. You get the feeling that Salvadore is just dragging the series on to keep raking in the money, instead of finishing up Drizzt's tale with a bang. He's a 'hero' of sorts, but he hasn't done anything with real lasting impact as befiting his near-epic status. Salvatore should have him kill Lolth or something suitably heroic, and be done with it. Entreri is a more interesting character, anyway, and deserves his own trilogy (one with a real conclusion, at that).
Oh, and if you like Salvadore's writing with a real conclusion, the Cleric Quintet is okay, and The Highwayman is quite a bit better. You still get a little angst, but it's on the whole more gritty and relevant than his FR work.