Well... This was my second time seeing Muse live. The first time was earlier this year at Oracle Arena in Oakland, and that show was absolutely phenomenal, with the amazing energy and nice set list (even if there weren't any rarities that I can recall). This one, however... hmm.
I liked it, I really did. But I left feeling slightly disappointed. It felt off from the time it started, and throughout the entire show my Mom and I (she's a fellow Muse fan) could tell that the energy just wasn't there. We thought it might've been Muse just being exhausted from the tour, and I still think that's a reason for the slightly ho-hum experience most people (including myself) seem to have had, but reading the previous pages of this thread it looks like Arco Arena really screwed up as well. I even saw that the security there (or some sort of staff) were badmouthing Muse...?!?! Highly unprofessional jerks.
There definitely seemed to be a late start to the show. I recall clearly every time one of those pre-techno songs ending the crowd starting to cheer and then disappointed yells as it went onto another one.
If Arco Arena really messed up this much, I wouldn't be surprised if Muse never came back to this arena (yay double negatives!). Really, though, I think I'm going to try to avoid seeing them again in this arena - Oracle (Oakland) was FANTASTIC, and the sound quality there was noticeably better than Arco. I can see them in the bay area easily enough.
All in all, even if I was disappointed, I still enjoyed the show a heck of a lot - even if the Oakland concert was 10x times better than this. Luckily, I know that this isn't an average performance for Muse to do - the short setlist, lack of energy, etc. Even though this is only the second concert of their's I've seen, it certainly sounds like this is a major exception.
Oh, I did like it when Matt kicked the balloon at Dom though.