I have owned Garmins for a long time, including 520, 820, and a 1000, and previously found their support very helpful on the few occasions I needed it. However, recently I purchased the 1030 which is a good unit, much improved over the 1000, except that my 1030 began to not connect with my Garmin (ant) speed/cadence sensor and my Wahoo (ant and Bluetooth) heart rate sensor. I called Garmin and they suggested changing both sensor batteries which I did. Both sensors continued to only sporadically connect with the 1030 but both sensors connected with the 1000 perfectly. I called Garmin again and they told me that since my hearth rate sensor was not Garmin, they would not address that problem. Additionally, since my Garmin speed and cadence sensor was not the latest model, they would not address that problem either. That both sensors connected perfectly with my Garmin 1000 was not relevant according to them.
I have multiple bicycles and also have multiple sensors. All the sensors work with my Garmin 1000 and Stages computers but not the Garmin 1030. In my mind, being required to buy new Garmin heart rate and speed/cadence sensors before Garmin would address my 1030 problem was an unacceptably expensive run around.
I called Competitive Cyclist and they immediately refunded my 1030 money. My learning is buy a cycling computer from Competitive Cyclist that supports and works with all sensor brands (appropriately ant/Bluetooth) and be wary of Garmin support which is no longer reliable.