Yeah Steve. I have to be thankful that there is a 5 year warranty period, though. I'd be pretty upset if they didn't stand behind their work like that. The data I get is mostly useful. Some of it is just the same data presented on a different page. As long as the internet connection is continuous, the data points are updated every 5 minutes. This gives me a clue as to what is happening to it. These days, particularly with battery backup systems, it is increasingly important that this data is available to the end user.