Third day in a row where a bit of the constructor shines through! Matt is a professor, so I smiled, seeing the god of wisdom ERUDITE (rhymes with Aphrodite).

Ha, ha, of course, it's pronounced like "bite," as in a "crudite" platter, containing little food bites. Duh!
This is why I should never use the word ERUDITE in one of my puzzles. Seems appropriate that it crosses (the fantastic) I RUE THE DAY.
Brilliant clue for ESCAPE ROOM. The term has been in many crosswords by now, but playing on "outgoing people" is sheer erudité.
I enjoy themelesses that feature most of the flashy answers going in the across direction. That's not easy to accomplish — most themelesses have about half their feature entries across and half down, for ease of construction — but it makes them so much more pleasant to read as a solver. Getting HELLION, GREEN LIGHT, NON FACTORS, HETERONYMS, and PIEROGI all horizontally, made the puzzle feel more jam-packed with goodness than usual.
I got a little worried when uncovering GDR / OED / ACA right off the bat. These are decent entries, but having three initialisms bunched together isn't elegant. GDR, in particular, is a toughie — my sad geography knowledge had me wondering … Great … Democratic … Republic?
HA I GOT THE LAST TWO WORDS RIGHT, SUCKA!
Okay, maybe GDR (German Democratic Republic, another name for East Germany), isn't such a decent entry. Will Shortz is particular about initialisms that aren't universally known (think USA), since if you don't know them, there's no way to figure it out without the crosses.
Nor is OSA, a bit of crosswordese Will is trying to stamp out. These little 4x3 chunks (from OSA to the right) seem like they should be the easiest part of a triple-stack to fill, but they're often the most problematic. If one of them had been expanded into a 4-letter word, that would have given a lot more flexibility.
Overall, though, a lot to love in this one. I appreciate when constructors use difficult grid patterns in an attempt to make the solving experience more pleasurable.