I've never had an outage or issues, so I haven't even had to reach out to support. I did feel like at first I was pushing the 700-800mbps speeds, now its closer to 500. This is wired devices, I know that wireless you'll see some degradation.

It is a shared service and the higher plan is "up to 1g" not guaranteed. Fiber is always preferred, and its vastly better than Mediacom coax that I had before. Better price, more bandwidth, and much lower latency.