The Road Runner web proxy servers also seem to fail frequently. Or don't use a web proxy server at all now that it is no longer mandatory. Obviously the severity of this problem depends on whether you have access to other servers. The whole point of providing such services at the RR head end is to reduce traffic on their link to MCI and on the external Internet. Going to external servers defeats this.
Users regularly complain of high packet loss rates.
These are usually, but not always, intermittent. Sometimes they are caused by backhaul or Internet congestion, so they affect everyone on the system reaching certain remote sites. RR occasionally adds bandwidth to their Internet connections, but they always seem to do it in a reactive fashion. I.e., they wait until their existing links are totally saturated and everyone complains before they add more capacity. Sometimes packet losses are due to problems in the cable plant.