Today brings us a grid based on the common four-quadrant design, which Michael extends by sticking in a pair of long entries in the middle. I like the efforts to go the extra mile. And entries like MOBILE APP and SEEN IT ALL are the types of debuts right up my alley. It took me a while to piece together that NW corner, but when I did, those two answers sparkled like nuggets of panned gold.
Why did it take me a while to finish that NW? One reason is how sectioned off it is from the rest of the puzzle. It does have two entries that can get you in: ESTATES and PYLES, but since I already knew PYLES was going to end in an S based on the clue, that really only left me one entry point. I did really like the clever clue for ESTATES; I just wish I had had an additional shot to break into that corner, as I couldn't see ESTATES for the longest time.

I didn't know there was more than one PYLE, and I found it amusing to read about Gomer Pyle and Goober Pyle. There's something so comforting about the simplicity of old-timey sitcom characters.
Joel Fagliano's comment from a week ago help solidify some thoughts I'd been mulling over. I'm sure there are die-hard RITA MORENO and ALAN MOORE fans out there, but I so much more enjoy uncovering entries like STRUCK DUMB and SOLO SHOTS, as the latter two give me personally so much more satisfaction. It's tricky — full names can make for beautiful feature entries. But I personally like to see only one (or maybe two if they're very well-known) such proper name feature entries in any given themeless, especially considering short fill will often require a lot of propers. When a solver hits a lot of "you either know it or you don't" entries like DIRAC, BRODY, WAITE, AMAHL, PYLES, ERIS, GAEL, etc. it has the potential to reduce overall satisfaction.
And while I like the clue echo of I AM AMERICA and THE KINGDOM both being from 2007, those do lend the puzzle a slightly outdated vibe. I remembered I AM AMERICA after getting a few crossings, but I wonder if it will be a classic. I haven't heard of THE KINGDOM, and after reading up on it, it still doesn't seem crossworthy, especially for a prime real estate location in a themeless.
All in all, a very tough workout today, especially given my high level of ignorance of most things pop-culture. Some beautiful clues; a huge smile to my face for a great one, [Was ducky?], cleverly hinting at WADDLED. And saving the very best for last, TESS has such crossword-friendly letters as well as inquisitive, hard-working, uber-strong, thoughtful, ambitious, creative, considerate (and dirty-rotten-stinker-who-keeps-her-new-parents-on-the-brink-of-fall-down-exhaustion) connotations. I have a very good feeling about that name. Except for the stinker bits.