I completed all my training from PPL to CPL/MEIR at Blackbushe Aviation up until 2006. I found the instruction first rate, the aircraft were good and the airfield had (has?) good facilities. I would recommend them based on my experience.
You maybe aware that Blackbushe is part of Redair which has a school at Redhill and Sky Lesuire at Shoreham. If the hours constraints at Blackbushe are problematic perhaps the other ones are of interest.