What it worries me most is the broadband connection at home. I have a 20GB monthly quota for a family of 5. How much traffic will the Office 365 Home Premium generates, and will it still work if the broadband connection fail? OK, my connection is quite stable now, but I did experience a very bad time for 2-3 months when the connection dropped 10 times in 20 mins, and could not maintain the connectivities for a few hours. I am totally against services that run only with the broadband connection.