I've been using Comcast PowerBoost (6Mbps download / 768 Kbs upload) for about a year and have been pretty happy with it. The speed was fine and the price was good at $33/month. (Although I had to keep calling to get them to lower the price after the promotional price kept expiring). Comcast recently upgraded my neighborhood to fiber optic and so the new Blast service was available. I called them up and they just flipped a switch internally to unlock the higher speeds. I was getting roughly 12.5 Mbs download and 3 Mbs upload. The advertised rate was supposed to be 16/2, but I never got more than about 12.5. The upload was faster than advertised, though.

Well, Verizon also upgraded our neighborhood with fiber optic cabling, so I was also able to get their new FiOS service. It was cheaper for a faster rate especially since I already have my phone service with them, so I thought I'd give it a try. The installation went pretty smoothly, although it takes a while because they actually bring fiber optic cabling right to your house. It just worked, though, which is great. The speed is exactly what they're advertising - I'm getting just barely under 20Mbs download and 5.5Mbs upload (advertised was 20/5). Blazing fast and it's much faster than the Comcast Burst service.

Here are my speed test results using Comcast Burst...

And with Verizon FiOS...