I've listened to both albums once each.
First impression of Puzzle is that I need at least 10 more listens before I can wrap my head around my first listen. Puzzle is a very accurate title for this album.
To those saying the album isn't for them, I totally understand. I would encourage you to at least check out the closing track, Monuments of Glitch, before dismissing it entirely. That song to me seems to be the most "typical Devin" sounding song, if that makes sense.
Snuggles is one big, ethereal, ambient mush and I'm all for it. Ghost is one of my favorite Devin albums, and although Snuggles isn't as song-focused as Ghost, it still scratches that itch for this aspect of Devin's sound.
I'm waiting till my physical copy arrives with the Blu-Ray to listen to them again, but overall I really like this duology.