it's useless, illogical and at&t lies when you ask questions. they assured me that all tvs in the house would record programming, however, they won't. if one tv is recording the others will not and you are only ALLOWED ONE RECORDING BOX per home. if two televisions are watching hd channels the third will only watch non-hd channels, their router makes our high speed computers SLOWER than the 5 year old router we had and to top it off the tech broke the door on an expensive piece of furniture and then propped it so i wouldn't notice until i opened it today. that door hadn't been opened since dtv had installed the original system two years ago. of course, he denies it and at&t says it isn't their fault.
they can break my stuff but informed me that if i so much as scratched their worthless POS boxes i would be charged a hefty fee for it.
needless to say, at&t is out of this home and my families' life forever, they are liars, cowards and, of course, couldn't care less whether you are satisfied or not. they will, however, offer an "apology". how chivalrous of them.