We just got back from a long ass weekend. I'll let @closetojumping give his own thoughts, but in general...meh.
The food, was fucking fantastic, as always. Piero's still has it's fastball, although who knows how long that will last. Dan's in the Fontainebleau was fucking exceptional. And the Casino was nice, I'd consider staying there over the Aria, because it's new and nice and you take a ride everywhere you're going anyway.
The Aria...it's fine, but it needs a fucking facelift. The plates around the window buttons and lights literally fell off and was unattached. The sports book needs new, fully digital TV screens. It's clean, and all, but it's dated. One of the higher end casino's should never look dated for long, imo.
Wizard of Oz at the Sphere was expensive, but worth the price of admission. Real cool.
Other than that, our group might be done with Vegas. We'll see. When I got in, I ordered a double jack and diet coke, a double makers, and a red bull, from the bar by the Aria sports book. 92 dollars, before gratuity. The service by the hostess at the Aria book where we paid for seats, was shitty and inconsistent with the information we got from our concierge host. Just expensive and stale and inept from a city and hotel that are supposed to be built on hospitality, there certainly didn't seem to be a lot of fucking hospitality.
Everyone else's complaints about vegas Ive read here and elsewhere seem pretty accurate.
EDIT: Also, everyone should be sure to ask CloseToJumping on his experience with a cab driver who gaslit the fuck out of him.