how good are the Nexar dashcam with built in gps?

[coldair]

usually we (my golden and I" just see cool stuff like deer and stuff on our neighborhood rides last week we ran into someone illegally dumping and it could have gone very badly for us had I made him stop. Since I was carrying concealed the dumper could have accused me of displaying a weapon or worse so I thought I should put dash cam on the cart and preferably one that has forward and reverse cameras and a gps tracker.

so what if any experiences have you had with dashcams on your cart?
how is the Nexar brand cameras? https://citystream.getnexar.com/virtualcam

also what and where are you mounting your cell phones? I tried the magnetic phone mount to the windshield pillar and had to go home to get an ipad to find my phone when a branch knocked it off in the dark. I need some method to mount it where I don't have to reach over the 90 pound pup laying on my lap.