Hey,
I found a glitch in the S1...it does not retain a postal code (that's what we call a ZIP code here in Canada) and it is causing me a problem as there are 4 streets within my city that all have a similar name to the one I live on...
So, if I put my address in as a regular destination each time I want to get to it and choose the correct one out of the 4 listed I am good to go and it will take me to my house...however, if I set it up as my go home address or choose it from destination history it will automatically pick the first one that comes up in the list of 4 and route me to that