In regards to fans, U2's blessing and curse is the wide variety in their music. I mean, if an alien landed and I played him/her/it Lemon then Vertigo then Angel Of Harlem then Mofo then A Sort Of Homecoming (well you get the picture) the alien would probably guess that they were all from different bands. They're all so different, while all still completely grounded in that fabled 'U2 sound'. Therefore, U2 fans are all so different in their tastes.
There are fans that are completely absorbed by that diversity and are crossing their fingers and sending vibes to the band to egg them on to keep pushing in whatever direction comes into their heads on any given day, even if it's Bono's new found fascination with Icelandic Rap/Metal with a Bluegrass feel.
There are also fans that were brought into the U2 fold by one of those particular sounds or era's or albums and that is what they always will consider as 'the' U2. They'll always have a natural urge towards anything that sounds like it's from then, and a little nervous towards anything thats very different. That is all completely cool. I think it's great.
The music can/is often so completely different. If it were two completely different bands, would you expect a fan of With Or Without You by Band A to instantly love Mofo by Band B? Of course you wouldn't. I mean, if the 'net and a community such as this existed over a decade ago, how do you think the greater first reactions would have been to The Fly coming off the back of Unforgettable Fire/Joshua Tree/R&H? How about Numb? "Whats this just talking over a beat business?"
Point is, someone says they adore Vertigo, someone says they don't 'see' it yet. It's all good.
Oh, and my vote is
I love it. It's going to be incredible live.