Same here... I like the non-spell changes (barbarians, rangers, druids, bard), and think the racial changes will add lots of character (gnome).
I think there were some obvious inbalances: haste was too potent for it's level, for example. I don't think some of the other changes were necessary though.
- hold person, will save each round? I think I've only seen a PC held once, and this spell is rarely used by my players (since they usually have "bigger guns"). Save each round means they'll never take it.
- disintegrate. I'm trying to reserve judgement until I see the actual damage caps. We certainly never had a problem with it.
- buff spells. Well, my sorcerer will probably not bother learning any of the buff spells now, there are too many other things that are useful at that level, and will scale over his career.
- polymorph spells. This is the one that bothers me the most. My sorcerer took alter self and polymorph self as key spells - they were supposed to be my "bread and butter" utility spells, and used more for travel than anything else. At 1 min/level, polymorph is useless for anything _except_ combat.
Overall, I'm worried that they're removing effective options for spellcasters. This might not be the case - we're potentially only seeing a small percentage of the actual changes.