I voted no new class skills for sorcerers and sorcerers can't Quicken.
While I am unsure about many of the PrCs, I consider all PrCs optional anyway. (Don't the rules specifically say they are optional?) I prefer them to be campaign specific, and they certainly should require DM approval.
On the complaining topic, I have no problem with good-natured, constructive criticism. In fact, this is probably what convinced WoTC to revise the rules. On many topics, they seem to have heard the complaints, considered them, and made some changes accordingly. For example, bards in general, Harm and Hold Person.
Upon review, it seems that I am happy with just about all of the changes of which I am aware. The only areas where I am less than happy is where I thought there should be a change and one was not made.