It worked great for my 65lb lab! 
She was a little nervous at first and her shaking made the Booster Bath shake which made her jump out of it and took it down with her. But the second time it was flawless. It gets my dog to a good height so that I don't have to kneel or bend over, which is good for my knees and back.
Easy to assemble.
Overall, I'm pretty happy with my purchase.