I've used them twice - positive and negative.
Postive - Got my D700 from them, and they were £300 cheaper than anyone else on launch day.
Negative - Before Christmas 2008 I placed an online order for around £1k. Card charged immediately. No sign of goods for at least two weeks. Emailed several times. No reply. On ringing, they couldn't locate the order at all - despite the charge to my CC. Got refunded in the end....