Striking! Check out that long diagonal of Is running through from SW to NE - it's appropriately 11 Is long! Then look around at the rest of it, and you'll see nothing but Is. It's a stunt puzzle!
If you'd asked me yesterday what I might think of a puzzle using only the vowel I, I'd bet there would have been a lot of CRINGING, because such a limitation can be STIFLING, but Mr. Charlson somehow managed a pretty TIGHTKNIT grid, and even managed to include a some BLING in the MIDST of it all.
Sure, Otto FRISCH and INI Kamoze are a bit obscure, and BLIN is a variant I've never heard before, but there's not much else that feels very off-putting. PRII (49D: Toyota hybrids, jocularly) is amusing, and even IST (47D: Loyal follower?) is elevated by its clever clue. OK, well, INDS (2D: Unaffiliated voters: Abbr.) is rough, but still, it's not much - and I is the only vowel!
Bruce Haight has taught me to appreciate these stunt puzzles, and I think this is a pretty darn good one. I'm SMILING about it, and I didn't even need any WINING and dining.