Built very well, and love the different height options. This allows us to use it on the bed or our couches. It is pretty slick, so our pup has a hard time getting up, and he usually ends up sliding down, even on the lower ramp settings. Because of this, he’s afraid to use it. I’m hoping over time it will wear (our cat is a big fan of the ramp), and he’ll be able to get a better grip.