So I'm on this 10gb big contract. I even tested with a non roaming sim before getting it. My connection is rather temperamental though. When its good I can get 4mbps but when its bad its really just saying connected but it isn't. Lately my signal seems to have dropped off a bit and it's really frustrating. I tried to do a speedtest and it wouldn't even load. So I tried one on my phone (through Wi-Fi and a router) and got 262kbps but in the graph it was mostly in the first second then nothing. Upload basically stopped at 86%. This is pretty much what I experience while trying to browse like Facebook will load the top bar then nothing else. Wish I could "trade in" this contract, bite the bullet and get ADSL now that they are upgrading 384k to a more acceptable speed.