The main aural difference I sense between We Got It From Here and Low End Theory would be some more prominent guitar riffs in the former. I'd say Show Business, Everything is Fair, and Scenario were all relatively dense production wise compared to the other songs on their second album. I think the more consistently energetic production on Midnight Marauders is part of the reason it's my favorite work of theirs. We Got It From Here sounds a little different from their older stuff, but I wouldn't call anything about the production on their new album experimental. When I think of experimental hip-hop beats, my mind goes to El-P, Alchemist, Shabazz Palaces, Yeezus, Death Grips, Lil Ugly Mane, Zeroh, Sporting Life, and others in that lane.
I played through RTJ3 once so far. I don't put much stock in first impressions. RTJ2 didn't wow me the first time I heard it, but grew to become my AOTY. All I'll say about 3 at this point is that I'm looking forward to playing it again. I'm black as the heart of the president-elect for those of you taking census.