Not sure about the "to panic or not to panic" question, as you stated you don't have wire service.
By that, do you mean that you don't have Cable TV? If so, I always thought that in those instances, that they had to send someone out to check the filters on the cable line at the pole. But I may be wrong on that one.
However, it seems they struggle to manage their Miami networks from what I have heard (a lot more downtime there). Not sure on exact figures.
Once you're up and running, the speeds are good, unless you have an overloaded node.
This is in Western/Central PA with "15/1.5Mbps MAX" (yes, they actually provision it lower up here for whatever reason).
So with their 15/1.5, I'm getting, realistically, about 16/1.6
Hopefully things will work out. Keep us posted.