Pros:
Free International Shipping - that's with no minimum spend!
Can use PayPal
Really cheap prices.
Large range of stuff.
Seem to be happy to refund/replace items (from what I've heard).
They tend to be quite upfront about whether or not a product is genuine or a knock off.
Cons:
Shipping can be quite slow (there is an express option but its not free).
Don't expect high build quality on really cheap stuff some of it will brake straight away or not work when you get them - read the reviews on items to get an idea about this.
If your not careful you will buy a whole heap of junk you don't need :)
Summery:
Cool online shop with free international shipping great if you don't mind a bit of a wait and are realistic about what quality you expect for the cheap stuff.
Notes:
If your importing stuff remember to check the customs regulations.
Prices are in US$ so remember to use a currency converter like XE to see what the prices will be in your currency.
Link: DealExtreme