I have had FiOS for 3 years. I live in a Virginia suburb of Washington, D.C., and had Cox Cable before that.
I have a bundle with TV, phone, and Internet (25/25) for around $125 a month for the baseline service. But you also pay extra for every set-top box, plus taxes, etc., etc.
The service quality is very good. Bandwidth is generally as good as advertised. I have had very minimal service interruptions, barely noticeable. There are a lot of cool tools, like being able to program your DVR from the Web, view photos and videos on TV that reside on your computer, etc.
Cable modem/router device is proprietary. It is included in the price but I don’t know if it’s possible to get an aftermarket one if you need another router.
Set-top box options include analog output, HD, DVR, and HD DVR, in ascending order of price. I have an HD DVR, an HD boxes, and two analog boxes.
At first the billing was absolutely terrible. I had a bundle price, but the 12-page bill I would get was so convoluted I couldn’t tell if I was being charged properly. They fixed that after the first two years and now I get a very clear, readable bill.
Customer service isn’t very good. The reps are not very well trained. I have made at least a dozen calls to resolve an issue with my phone and it still isn’t fixed. It’s an extremely unusual issue that very few people, maybe only one person, would have to deal with.* My impression is that, like many ventures like this, they rolled out technology before the company infrastructure was able to support it, and it will take another couple of years before Customer Service has their shit together.
But dealing with them is still better than the cable company and I’m happy I have it. On balance I recommend it.
*I had two phone lines, and decided to drop one. The one I wanted to drop was the primary account line, and it took several phone calls for them to change the account so it could be dropped without cancelling the entire account. In the process they had to re-enter the remaining phone number, and twiddled two digits by mistake. So every time I call, they have no record of the actual phone number that rings in my house and try to tell me that’s not my number. Meantime the phone number listed on my bill is a dead line. This is not resolved after 14 months and causes a problem every time I need to call Customer Service.