Hi - Should be 5 Star; as communications and information up to installation were excellent. The installation team were very good. So overall very good but just a couple of issues that downgrades to 4* 1. The scaffolding was unnecessary and just got in the way of the installation team. The roof runs off a large accessible balcony. The survey team said no scaffolding required and the installation team said it just got in their way and slowed them down. 2. The shine link monitoring system didn't work when the installers left (they said it would start working a couple of hours later - but it didnt). A couple of days later I rang the helpline. After 40 mins told someone would ring back - but never did. Two days later I rang again. I spoke to someone who was helpful although really just referred me to google (probably the right thing to do) . The key aspects was the App was not working & no light on the white dongle and only 2 lights showing on the shinelanbox. I had described this to the help line. Only by going through the complete manual did I work out that the dongle was not on - so I needed to take off the dongle and switch on the two hidden little switches that for some reason the installers had forgotten to do. It now appears to be working!!!