I just got mine. First impressions are:
Good:

1. Connects to n800 fine
2. Responsive
3. Very pocketable
4. Charges fast
5. Lights up in the dark

Bad:

1. Reconnecting can be a real pain. The n800 doesn't want to recognize it for a reconnect. Have to delete the old profile and create a new one.
2. Have to reconfigure some of the shortcuts as ctrl & alt are on opposite sides of the keyboard, so pressing a ctrl + alt + key combination is difficult.

Overall, though, I'd have to say that I like it.