PENNY DREADFUL, what a colorful term! Along with common phrases NICKEL AND DIMING and QUARTERHORSES, the puzzle nicely covers the ...
read morePENNY DREADFUL, what a colorful term! Along with common phrases NICKEL AND DIMING and QUARTERHORSES, the puzzle nicely covers the first four US coins.

I liked the long fill, too. EVIL GENIUS is a snazzy enough entry on its own, but referencing the great Lex Luthor makes it even better. (Boo, goody-goody Superman!) TECHNIQUES isn't as strong, but I appreciate getting a Q worked smoothly in.
THREE CENT PIECES … my initial impression was that it felt out of place, because it's out of circulation these days. There is something cool about a bonus quasi-themer crossing each of the three main themers, but it also muddied up the theme for me. I would have preferred either 1.) having an unrelated long down run through all the themers, or 2.) doing away with it so the middle entry could have been NICKEL AND DIME, for a cleaner set of PENNY / NICKEL / DIME / QUARTER.
Check out how many neat six-letter words there are today. REMORA, FERMIS (common units in engineering), the full AMEN-RA, MONICA, PIRATE, STANZA. They added so much to my solving experience. It reminded me of something Joel's been emphasizing with his lower-count puzzles: mid-length entries can greatly spice up a puzzle.
I also appreciated how smoothly Mike worked in the Z of ZULU / ZEST. Too often I feel like a J Q X Z gets shoehorned into a Monday puzzle, resulting in gluey bits galore. Some may argue that UVEA is esoteric, but as one of my previous careers was in ophthalmic pharma development, I'd have to politely disagree.
ADEN might also raise an eyebrow, given how that corner could easily have been TOUR / EDEN / NESS. But ADEN is a major port, and it's nice to get a little diversity, especially since we see EDEN all the time in crosswords.
A theme that made me think, very good fill with just minor OLA and TIOS kinds of stuff = an enjoyable solve.