Apart from 1 negative for advertising something not in stock, they don't look too bad...
DealTime.co.uk: Microglobe Compare Prices & Read Reviews
But those are all pretty old reviews, so don't know really.
EDIT/ Some more at
Microglobe: Read Reviews and contact information at Kelkoo.co.uk but again not very recent.
Another edit/ Microglobe are also London Camera Exchange, if that helps!