In case you missed this announcement, the Cardboard Heroes Dungeon Floors are out in PDF.
Cardboard Heroes Dungeon Floors
I'm taking a pass on them for now. I needed this a while back, so I ended up getting a copy of the spiral-bound hardcopy on eBay and so now I'm good on all the ones I wanted. But I'm happy to see this out in PDF. I've been pushing for that for a while, and I think they'll make a fine addition to the DF RPG.
I like these a lot, although they don't match up quite so well with my Chessex maps - the hexes are a bit squished in the paper copy. I'm not sure if that is fixed in the PDF or not. And hexes are hexes - you can't just put any two corridors or rooms side by side like with squares and expect them to line up. That means some fiddling. All of that said, these are nice and they are very useful for tactical combats in a GURPS game.