I pay for Blast! (16mbps download/ 3-4mbps upload). I get: http://www.speedtest.net/result/1201712411.png
I have had only one minor outage in 8 months. It was down for 30-60 minutes.
The TV portion of their service has been less stable, but has been mostly resolved by new STBs and a refresh signal. Very little pixelation/tiling. I wish the DVR held more shows
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For those with problems, it is possible that it is an internal cabling problem, a bad splitter, and/or having the cable modem in the wrong location (having the modem after the line is split multiple times, or having a modem connected after an amplifier).