While we're at it . . .
There are a couple of other little snags (perhaps bugs) which I have encountered in LR 3, which can catch you out. This is in B/W mind, I haven't tested what happens in colour.
* White objects against a darker sky (such as a lighthouse, flagpole, etc) interact unpleasantly with the detail slider. If you crank up the detail, you can get a large dark halo around the white object.
* There is some sort of bug in the highlight priority vignette. Eric has said that it is a known issue. What happens is that a local brush adjustment using EV also alters the overall vignette density, and the two interact in an unpredictable way.
Otherwise, of course, Lightroom is completely brilliant (and I'm not kidding - I tried using Phocus again the other night, which made me realise how brilliant LR really is).