Spoke to garmin today as had a few faults with the 1030 (only had it a few days now) and asked them if they were looking into them.
So far I have had the following problems :
Bluetooth not connecting with phone
unit completely crashing when looking at strava stuff (seems to be quite a common thing as seen it online)
sensors working then not connecting
can have some lag sometimes
garmin know about Bluetooth issue and a working at a solution but I am not sure about the other's