Over IPv6 they have direct peering with Hurricane Electric in Seattle, which brings local latency down to 2 to 3ms. Performance for Youtube & Netflix is way better over IPv6 too, but in some edge cases I'll tunnel through a VPS in downtown to get close to filling my pipe when downloading stuff from overseas.
Reliability wise, I've had 1 outage in two years, which happened at 1am on a weekday for slightly under 2 hours due to a PPPoE Aggregator failing. Far better than Comcast or Wave ever were, and at our usage I don't think either of the cable providers would be viable. We hit 12TB last month iirc, not even a peep from Centurylink.