I look forward to interesting exploration. The original lot2 postgame's "Extra" floors... urgh, the downwards ones are just a super boring slog through nothing. The bottommost one doesn't even have a boss or anything, it's just a few pieces of equipment to find. Thank god the upwards ones are better. Partially because it's faster; all the holes you hop through and floor changing means less fights so it goes faster.
I'm also a masochist, though. I EMBRACE ETRIAN POSTGAME STYLE DUNGEON DESIGN :D
LoT1 plus disk had balance issues and heavy grinding, but several of the floors were pretty neat. The unfloor'd floor was kind of annoying to find treasure in, admittedly, but it was hilarious and neat, and the one-way-trips floor (28f?) was fun to struggle with and figure out. I was kind of disappointed LoT2 didn't have any smoother floor mechanics like one-way-walls that LoT1 did, instead using heavyhanded vague arrow warp tiles for -any- unusual tile movement, as opposed to a slide, one-way-wall, etc. Looks like Plus does better on that end.