I've not used it yet, though I'm about to. My standard for a long while has been v29, but I'm about to use a 1756-L82ES Guard Logix on a project, which will necessitate at least v31.
I did a bit of work a couple of months back helping integrate a couple of new picking/placing robots, which were programmed with v32. Opened the code and had a poke around, didn't see anything massively concerning (aside from the way they seem to have put a heap of the navigation tools etc in a bingo ball and pulled them out at random to decide whereabouts on the screen they should go this time).
Apparently it's supposed to look a lot more like CCW - maybe if you're more familiar with CCW than I am it'll make more sense, but for me it just made my eye twitch. I mean FFS, Logix is your flagship software and CCW is free and has been largely panned as terrible* software! Why would you want to make Logix look like that, and not the other way around?
(*I hear CCW has become significantly less terrible lately, but I've not been back for a look for a couple of years now)
TLDR, I guess I can't give you any really valuable feedback.