Media Com is another large provider of Internet and phone services here in small town iowa. I work for an MSP and Media Com is one of the few larger ISP'S in the area.
Overall they are slightly better than the competitors but still have issues with support and time management. We have made multiple calls on behalf of clients and wait times are unusually long and they never promptly send out technicians.
As for quality it's an improvement and they stay operational quite a bit. We use them as backup to local ISP'S quite a bit.
We have one satellite office that utilizes Mediacom. We have had one or two issues with the internet being unstable. First call to support, and no issues from them. They dispatched a technician to get the situation rectified within twenty four hours. The few instances I had to deal with support, it was a breeze.