Whenever you get the first batch of anything; car, phone, watch, or bike computer, there’s always a bit of risk that it might not be quite “done”. Which was certainly the case for me with my Garmin EDGE 530, where the buttons were really hard to use. It finally got to the point where it was taking 5-6 HARD presses to get the back button to do anything, so I figured it was time to do a warranty exchange with Garmin.