I agree a lot with what FindEight said. I think he has a nice rhythm, but looks like he’s either been ridden in draw reins like F8 said, or been ridden a lot from front to back (ie stiff hands, or someone concentrating on a head set). I think, if you get him using his hind end better and get his loosened up in his back, he’d be cute. As is, his canter doesn’t look bad, actually kind of cute. If I were to just see the video, without knowing any of the back story and asked for an opinion on the pair, my first reflexive answer is slightly tight rider, and horse needs to come through his back more, not man, that’s a rotten moving, rough gaited canter.
And if you are just looking for a LL type horse, it sounds like his personality/temperament are great! That alone goes a long way in my book.
Having said that, because the canter does FEEL rough, check out the hocks, stifles, and SI especially well if you are doing a PPE, since he does trail his hocks out a bit behind him.
Sheila