Honestly, if people are bitching and moaning about this show, then probably nothing U2 could do would satisfy them, unless U2 were to play for 4 hours, and play that complainer's personal set list.
I have seen all U2 tours since 1987, and I felt the most passion from the band on this one. I think the initial euphoria with Elevation was that a bunch of fans felt U2 got back to their "roots" more, after Popmart.
On this tour, the band seems to really be enjoying themselves, and on the 2 shows I have seen, really feeding of the crowd's energy, more than they ever have. Bono sounds fabulous, I think better than he has in quite awhile. The new material sounds great, the setlist (to me) is better than the setlist I saw on Elevation.
Then again, that's my opinion - I am sure you can find lots of complainers - I say ignore them and go and see for yourself if you are able.