I bought my wrx off him last year. Had trouble with gearbox, told me there was nothing wrong with it. He eventually fixed it after having a 'face to face' with him in the showroom - he's one arrogant individual, to say the least!
Put it through nct 4 weeks ago - failed due to springs cut in back, car was dangerous on the road. New tein suspension in it now 900 quid down. Now need to sort emissions.
Couldn't recommend him to anyone, steer well clear!