I absolutely refuse to pay for cable at two home so I do a bunch of research and decide that only hook up fast internet and then use Roku and the service at both home would be a better choice . however , I know nothing about modem and such so I have to read a whole lot of review and look up all the ComCast datum and such . hopefully , this will make it easier for anyone else like I who be also look to cut down on fee and buy a really good modem . hook up be super fast and since I have the tech come to do all the other set up , I do not do anything at all . BUT , it be very fast and it just need a single phone call , the number from the bottom of the box and then it be good to go . this modem be a very good one base on the ComCast table and get speed right at the maximum list for the service . that be really nice since I be use Amazon Prime Video , Netflix and HuluPlus for most of my viewing -lrb- along with a antenna for local channel -rrb- . no problem with picture or sound and I run my computer at the same time . the light on it be a little bit bright so that might be a consideration if you be look to put this in the bedroom . I find they quite merry and do not mind they at all . also , unlike my cable modem at my main home , this one be not blaze hot all the time . this get a touch warm , but not scary hot like my other one . overall , I do think this do just what it should and it do it well . and I be not pay $ 7 a month for the rental fee ! bonus .