Digging into my account this morning, I see Comcast allots me 1024 GB of data per month (a terabyte). December and January usage was about 200 GB. I stream a lot of Netflix, Amazon and YouTube on my TV, some of it at 4k with no buffering hiccups. Pretty impressed with the internet service provided. I have their "Blast" 100 mbps service and my package, excluding equipment and "other" charges is $120/mo, including home security, HD TV and internet, no phone. My 100 mbps service has tested at 122 mbps over WiFi, pretty good for the price. http://www.speedtest.net/result/7020029122.png