I'm in the mind. As much improvement as Linux GUIs have made over the years, there's always just been that last bit of polish they are missing that makes them feel just a bit klunky in comparison to an Apple OS. Does it affect performance, no, but it just has that OSS feel to it. I totally understand the $$$ differences involved, and modern *nix UIs have come a long way, but it's like that last mile problem they just can't quite get there. It does not make it unusable, it's just the thing that always makes it noticeably different.