That is the model where I live, finally. It works marvelously. My speeds make everyone I know jealous (256Mbit synchronous, with a 1Gbit copper connection into the house) and my costs are certainly no worse, it only costs slightly more than the lowest-speed packages from the local incumbents, including a home number. It was a requirement for me to get into one of the served areas when I moved the family; and now that we've had it, we don't want to live anywhere else. Everyone I talk to is jealous and would vote for it in their city if it came up.
The most important thing is open access to the fiber network though. Without that, it's just another crappy local monopoly ISP.