I like him a *lot*. Jumps in wonderful form, clearly does have scope to spare. Clearly is tolerant of an amateur rider.
I also suspect he's a lot more ridable than the video might indicate. Notice that while the rider was pulling and fighting with him down to the fences; he never missed a distance? As a matter of fact, he jumped from very consistent, huntery distances. I think he's a smart horse who's learned to ignore the silly rider pulling on him and go to his fences the way he knows best.
I'm not familiar with the market and prices; but it *seems* like a fair price.