Same experience as most, really - Wunjo were the only folks worth visiting, it seemed.
The difference was, I was actually looking to get hold of a run-of-the-mill P-Bass, rather than anything obscure! The guys at Wunjo were the only ones who took the time to sit with me, explain all the tiny differences in all the models and let me jam on them for at least an hour. When I went in they also had a couple of nice Markbass heads and speakers - particularly the TTE500, which has been tempting me for a while. No complaints!
Everywhere else on Denmark Street left me feeling pressured to 'just play it and go!', and the range of basses available was awful.
Seeing as I'm a northerner, for my sins, my 'go-to' is PMT, in Manchester. Will have to check out Bass Direct though!