It's Booker Aviation at Wycombe Air Park.
I am not a customer, but local and drop in there occasionally. It's a small airport and medium sized FTO, but they always come across to me as pretty professional.
The top of professional flying pays well in the UK, but the bottom doesn’t, and many fail to get near the top of the ladder - or even to stay on the ladder.
The BNU course is slowly developing a good reputation in the industry - if you are good enough, they will be. That said, don't expect the BSc to carry much weight in the academic world - it certainly a real degree, but the university is not highly ranked academically.
G