Just like you, I went back and forth between all of the different action cameras out there, I have borrowed friends and tested different ones at demo booths and this is where I landed.
Major selling points for me: It has a screen built in, the record switch is that HUGE slider on the side of it ( every gopro video starts out with someone looking at the camera waiting for the red light to blink), and it has GPS.
Battery life goes for about 3.5 hours depending on how many options you have on
With all of the updates installed I have never had this camera freeze, pause, lock up, or shut off on me.
The coolest part for me is the VIRB Edit video software that shows you a map overlay of everywhere you went in the video, your speed, and elevation. I have always wondered how fast we were going at certain times on a few trails....
The only thing I do not like is that you can not playback any of the videos on your phone/tablet using the Garmin Virb App. You can watch them on the Camera itself, but not through the Wifi connection.
I will continue to test it out in different scenarios and elements, but so far I have been impressed! If you have any questions or would like to see something just let me know, I am happy to oblige.
This is a very good in depth review for several cameras if you are interested: