As someone who has moved around a lot this is a great service. Setup one address for all postal mail and no matter where I am I can get access to it. When I move the address stays the same - I can easily update my email address its sending to if need be.

Being able to search my archive of mail would also save me a bunch of time though I can imagine I would be deleting the majority of it.

I'd prefer it if the service was based outside of the US.