he is a local dealer. all horses he sells are pretty cheap to be honest. as long as you go with your eyes open and dont take what he says for granted then he is ok.
although I will say, and please dont take this in a bad way, as I dont know you or your experince, but I wouldn't go and buy from him if your looking at your first horse or atleast take someone very experinced with you. if your experienced, and upfront, and check everything out for yourself then hes ok, just a typical dealer to be fair!
although this is my experience and I know some people on here have had less than perfect experiences with him!
The horse in the picture doing dressage on the advert isn't the same horse thats for sale!! I'd be a bit cautious, the ad seems quite aggressive too, none of us like timewasters I'll admit that, but this is going over the top a wee bit.