So our ramp arrived today and we all LOVE it. It's very sturdy, has a handle and strap to hold it closed so it's pretty easy to maneuver.
We walked Cooper over it a few times laid out flat on the floor in the house, then took it out to the yard. I had intended just to practice with getting it set up on the car, folding and putting it in, etc. but both my daughter and Cooper were excited to try it out. In he went, no problem, and then sat down and waited for us to get on the road! lol.
I think this ramp is a keeper. Thank you, Winslow, for recommending it.