Speaking of Jon, I saw - and met - him last night. First, meeting him was a treat. I know he has his reputation, and has had his moments, but with me - and the few people around me - he was kind, gracious, present. I went up to him and said "Mr. Anderson, it's an honor." and he said "Please, it's Jon. What's this?" And I showed him my Going For The One, and I said "my favorite album of all time, by any band." And he said something like "Ah, that's very nice. That part, in Awaken, with the choir, it's special isn't it?"
His show was... solid as a rock. Not a marathon - on about 9:05, off about 10:55, with a 15 minute or so break in the middle - but he hit every single note. EVERY SINGLE ONE. No "rejiggering melodies" to cut out the tough parts, no help (though everyone in the band sang, necessary on his new songs, which were... to coin a phrase, "solid" but not spectacular). I won't spoil the setlist, but one Yes album in particular got special treatment (three songs) and one song - not a favorite of mine - was by far the best version I've ever heard (and without Chris Squire, that is absolutely saying something). The other two, both in my Yes top 20, were the highlights of the show, by far.
Not the best concert I've ever seen - the first half of the second set dragged, as the arrangements were full band, but less Yes and more CSN - but certainly up there, and I know I had the thought a couple times listening to him sing "we're watching one of the truly greats". He's still got it, though whether he can sustain a two-and-a-half-hour rock marathon is to be seen.