I've never lived in the UK but grew up in Dubai which had tons of imported British candies and goods and even a Marks and Spencer's. Much to my delight, many of the British chocolates and biscuits I grew up eating were available here like Hob nobs, Time Out, Lion, and Curly Wurly (I hated it as a kid but bought it for the nostalgia factor). The staff were very nice and helpful. I was able to buy "the world is ending you better stock up" worth of Hobnobs. Only complaint is store is a little
too west end for me but don't mind the drive.