My wife is a moderate to heavy user. Some how, she notices whenever anything happens to the service. The adapter is at the bottom/front of our TV console (in plain sight) which sits in the family room, which is right off the kitchen. Whenever I'm home, I'm always glancing at it to make sure all 4 lights are on. I also monitor the webpage status of the PAP2T from work. I can just as easily fire up my PAP2T perl script which monitors the connectivity every x minutes, but until I find a need to do so, I probably won't.

I just checked, both lines online, PAP2T up for 11 days. (We had a power outage 11 days ago)