If you have a sweet tooth this is definately the place for you!
Although I have to say I havent got a sweet tooth particularly, and have found most doughnuts of the various types nice but far too sweet. It is also quite pricey and I hear that in America they are much cheaper!
I do however LOVE the original glazed doughnut, its just lovely- the glaznig is very light and doughnut has a good fresh flavour, which is perfect in terms of sweetness, so its very satifying for my quick sugar fix!!