I carefully considered ramps and stairs until I decided on this one. It would fit my low couch as well as my higher bed, and my dog could grip the surface with her claws. Ideal... except I never considered the idea that my dog has never climbed or descended a ramp. She's scared of it. She's a bit of the nervous type about a few things but I never considered the idea that she wouldn't have the mind to use this. I'll give it 5 stars because there's nothing wrong with the ramp. The animal using it? Some training is in order for sure. I wouldn't know how anyone could predetermine the compatibility between something like this and a pet.