It is going really well. Not only are download much quicker, but web pages appear to 'snap' into place. If you are any sort of video stream watcher, that is much better as well. I can definitely recommend the upgrade.
I wish we had Infinity broadband in my area. We seem to be using a hand wound-up system here. Can be very slow at times. Just done a test and I am getting 6Mb/sec down and 0.5Mb/sec up. Roll on a full roll out of infinity.