I've been meaning to check this out, thanks for posting. Looks like a venue where I'd rather be watching from a distance instead of front row. I'm not one to pay top dollar for shows, I rarely go to big venues and I'm generally uninterested in seeing hugely popular groups - but U2 at the Sphere would be an exception to all of that.
On a non-music note, looks like the Sphere provides entertainment on the outside at no cost. Check out this golfer getting trolled: