Funny,
I just got my Voom service installed last week & cancled chicago Comcast. The voom installers cancled my first install and so I had to reschedule, plus Voom gave me a $25 credit. I called the installers several times to verify they were coming, the squeeky wheel definately gets the attention..
As for Comcast in chicago, it sucks, you only get a few HD channels(1 Hbo, 1 sho, 1 max in HD), and they don't carry all the local HD channels. With VOom I get all HD local stations, plus all the other 30+ channles in HD that comcast doesn't have....
Not to mention the COmcast guide/menu system drize you nutz, you can never find anything, and darn thing doesn't let you access the guide and watch tv at the same time...