I'd say my experience in SF has borne a similarly tragic arc...
I had affection for Comcast--a hard-won one since my original introduction was horrid. However in the last year their support has gone into the toilet.
I am seriously considering a jump to DirecTV/DSL--and I just UPgraded to Triple Play from Basic+Internet!!! -- I love to talk. »kreig.me
just FYI, comcast bought NBC universal, not the other way around.
personally, i've had no issues with comcast business in my market. that tends to be the way it goes. either they're great in your particular market or they suck.
Aurora,Arapahoe,CO
Contract price not specified. 
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Hear hear