I like it. Very fast, and hasn't crashed on me yet. I thought I'd hate the tabs up top instead of below the address bar, but it's growing on me. Have it installed in Vista x64 on my desktop and in XP on a Celeron 1200 with 512MB of RAM and it's pretty zippy even then. Not bad, not bad at all. I like its downloader a lot, very clean and minimalistic.

My only complaints have all been said before. It got a 78/100 on that acid web rendering exam when I ran it just now, so it's not perfect, although I haven't run into any rendering problems so far. I wish it had ad blocking, but I'm sure that'll come in time. Probably in the form of an addon rather than in core functionality, since some people like to have ads displayed for whatever reason. Tweaktown maybe? Also, middle-click scrolling would be nice. At least it works with the backwards-forwards mouse buttons.

Also, their website doesn't let you download the Windows version in Linux. Dunno why.