Your Garmin help, please

Either really. As far as I can see, for similarish monies the 800 will give me the option of cadence. However, I like the idea of the route planning stuff that the touring will do. However, a couple of people online seem to suggest that it is rather hit and miss. How have you got on with yours?

Well, I mainly got it for long rides heading out of London to navigate the first 30km of London sprawl on 100k+ rides.
The first time I tested it, I plotted a simple 30km out and back ride into the Kent lanes. On the way back, it hung and it wouldn't do anything. When I finally managed to get it going again, it tried to route me back in the wrong way of the out and back. Luckily, I knew where I was going.
The second time I used it, I was attempting the spiral ride on my own, I took a wrong turn an it routed me straight to the finish.
After that, I came home and looked at forums. As I was one of the first recipients, I couldn't really find anything out about the specific model however as it uses the same navigation as the 810, I saw the same problems.
I was instructed to turn the rerouting function off and that pretty much sorted my problems. It also can't count the right number of exits on a roundabout. It clearly means the first exit but says the third exit and vise versa. Possibly Americans thinking the UK ride on the other side of the road.
The upload to Garmin connect for strava doesn't really provide any more data than my phone apart from the temperature.
Still getting to terms with it but certainly don't trust it as a replacement for a map.