I do. We have the option of Comcast or RCN here and RCN is FAR cheaper. I have no complaints (actually, I much prefer their customer service to Comcast's). OnDemand isn't as extensive as it was with Comcast, but that isn't a big deal for me.
Same here. It's much cheaper than Comcast. We've had it for 9 years now and I'd recommend them.
Excellent. It looks like it would actually be $50 cheaper than what we currently pay for cable + internet + phone if we get rid of Vonage too, so that's tough to resist!