Kareem wroteI got the X6200... it's a piece of crap... or to be fair very average for the price. administration GUI is very simple and lacks basic features such as SNR / Attenuation and line sync stats.
Never buy a linksys modems/routers, they suck.
I tried it once (WAG series) , faced many problems: Not a good gui, web management session keeps asking for a password for no reason, no useful network/wan info-(who is connected, DSL info, wireless info), had wireless issue where devices disconnects after 2min and had to dig around for a stable firmware for it to work and many more.
I got the TP-link VR-400 so far so good, only thing I miss is visual indicator on router when the internet is down, the internet led on the VR does not turn off (it did on the WAG).
To recap, skip buying linksys at all cost.