Overall, HSS International has done a great job on the course I have attended.
They are logistically impoverished, however, their instructor was outfuckingstanding and current, rather than someone who did this stuff 10yrs ago.
Pricewise, you can’t beat them.
My first experiene with HSS (they have web site) but I will attend future courses (and shooting out of a convoy of cars doing J turns was too fucking fun!)