I heard somewhere that it's advisable to get the TM822G over the TM722G as it's a newer model
http://forums.comcast.com/t5/Basic-Internet-Connectivity-And/TM822-vs-TM722-Aris/td-p/1501639
"The 822 offers 8x4 (eight downstream four upstream) multiple bonded channel capability whereas the 722 offers only 4x4 capability."
In the future please use the raw amazon link because reddit removes all comments with affiliate or tracking information. You cansanitize your links like so to avoid getting auto removed: