Usually it's fairly good, although the quality does, of course, vary across the UK, but generally speaking, aside from a couple of horror stories (like the time I ordered SAE: Romulan Armada from ADB, when it failed to turn up at all and I had to ask Dan for help, or the time I wasn't in for a delivery of B5Wars books and they couldn't fit it through the postbox so they simply took it back...with a torn envelope and during one of the heaviest rains of that year--my copy of Coming of the Shadows was badly rain damaged but luckily not beyond reading comprehension) they are fairly good round here. It usually takes two weeks for deliveries from the US to here (which is why I started being on the lookout from round the 10th).

Hopefully it'll be through the door on Tuesday and I can start converting my old IS designs and maybe provide some expansion for the Dreadnoughts book (got my PDFs of Brassey's Naval Annual ready)