There were only two detractors:

1. I was constantly afraid my stomach acid issues would interfere with fun. They only did to the point where I mostly consumed non-irritating stuff. Probably good.
2. It ended.
3. OK, so I thought of another one: some people were not there.

Note to the programming peeps: please get Meteora back next year.
All three of them were joys, both musically and personally. I doubt you'd hear any other opinions. Of course, you had hits with all the guests, but Meteora...