For Axl, I could see that he held back and didn't push everything to the limit. I think he was able to hit everything in his range, but I have a feeling if he was full throttle the whole time, he wouldn't last 3 hours. The one thing I found strange was he said all of three things to the crowd all night? "Nice place you have here," "how are you feeling?" and "good to hear" was it as far as audience interaction. I'm not complaining, as it was better than the soap box he'd get on, or complain about this or that. Just seemed different.
For the solo's, my take is that if you write most of your songs with elaborate solos (November Rain has, what, 3 solo's just by itself?) you don't need to do multiple different songs just for the sake of doing another solo. Slash is undoubtedly one of the greatest guitarist alive, but that doesn't mean I want to listen to him shred for 15 straight minutes, only to be interuppted briefly to play an actual song. Plus, the solo's in the various songs are drawn out even longer than on the record version. I get some people may enjoy that, and think it is better than listening to songs just how they are recorded considering how old they are. I'm not one of those people, I want to hear the song the way I know and love it. I don't need the instrumental parts to be elaborated, elongated, and freestyled to the point where I can't even recognize it. Just my opinion.