I also have one of these and think it's brilliant. Although, looking at the photos, I think I might have a slightly older version, as mine does not have the same key layout - it's missing a Tab key and a Function key, although I do have a search key and some of the other symbols are spread between more keys.
See the attached picture.
The only minor gripe (other than the missing Tab key, although it looks like it's been resolved) I have is that the clip/grip by the space bar (so that it can grip the Nexus 7 when stored) can get in the way of your thumb when typing. It's not a show-stopper, to be honest. You do get used to it.
To be honest, it's very reasonably priced (even here the UK - I think I paid under £20) for a Bluetooth keyboard, so the gripes are neither here nor there.