Was on CX890 to EWR (A350) and noticed that speeds were pretty good although i didnt do much aside from text and send off a few emails
Return was on CX865 from JFK to HKG (via YVR) (77W). Interestingly the speed during the JFK to YVR legs seemed to be quicker than YVR to HKG (took a while longer for messages to go though).
Side note, i thought it was easier to sign onto the internet on the panasonic system rather than the gogo system, it took me a while for the login website for the gogo system to log on.