I already knew his Flintstones arrangement well. But my point is, how often do you really want to listen to it?
I had a similar problem with Y'A d'la Joie by Charles Trenet - a CD of upbeat songs that ultimately set my nerves on edge.
70 minutes of this and you need mogadon.
I listen to it alot! Every time I do I hear a new harmonisation or rhythym I'd never heard before! I do think his arrangements can be a bit intense with all the close harmonies, but I feel like it's so well thought out and the effect can be unbelievable. The You and I arrangement climax is just ridiculous, and the wind down with the single note harmonisation just shows what is possible with such a deep understanding. It's the ability to go anywhere and everywhere and have a listener feel like they're floating before giving a 'recognisable' cadence, grounding us for a moment before taking off again. A genius indeed..!