I was quite impressed when a couple of days ago my GO Camper correctly identified a closed road and planned an alternative route (the one shown in the Google Maps screenshot). However, today it seemed to think the road was open, which from the looks of what is going on at the affected junction, won't be for quite some time. How can it get things right one day and wrong on another day? Also, the sat nav tried to direct me down one of the roads on the industrial estate which is fenced off, so two big mistakes over a short distance. I'm less impressed now.