I am running the Garmin 60CXs. I have only had it a few months but with the topo-Canada maps it works great. The screen is not that big, but I have not had any issues. Its water proof and portable, I have mounts for it in both jeeps. The key is get the expandable memory and largest memory card you can. The unit is only as good as the maps you have loaded in it. Also get the car power plug in and you won’t have to worry about battery power.
My 2 cents.
Blair