Zero 7 ARE very much like Air - and I kick myself for repeating what everybody else has said.
But, I have more to add: for the first half of the album I reckon they actually top their chilled-out, Frenchie counterparts.
The album's very much like Moon Safari, but with more basslines, beats, twists and turns. The first track is a classic, starting with a great bassline. And it carries on much the same, with tracks much more varied (I think) than the Air LP.
The album did start to lose my attention towards the end, however (hence the 4 stars rather than 5). But this perhaps just shows that I've spent too much time listening to the first few cool tracks.
So, if you are an Air fan, we've all establised you'll definitely like this. If you are not an Air fan, or have not sampled them already, give it a whirl. It's certainly good medicine following a hard day in the office.