I've been very impressed with their service too, they even sent me some sample hops to try out, quick efficient and friendly. No I don't work for them!
I've used them a number of times, usually for hops. Their hops are well priced and always fresh. There was a thread on here some time ago advising where the hops were sourced (IIRC it was from a local brewery)
Never tried them, their hop prices look OK though, and they stock some unusual varieties too. Barley Bottom's hop prices are just as competitive and very good quality. Hop & Grape will have to reduce their prices to the kind of levels these two are charging or they may lose my custom