WRT Seek Outside and Kifaru: http://titaniumgoat.com/products.htmlSeek outside and Kifaru are also a couple to consider. I tried the floorless route and while it would really shine late season with a TI stove, it was just to much for me with the bugs. I ended up going with a stratospire 2 from tarptent and so far I am really liking it. It will definitely sleep 2 plus gear and going solo its a palace.
Better tents? I would say that is a pretty subjective statement. I dont own a Kifaru shelter but I know they make solid gear, as the few pieces I do own from them are a testament to that.