I would disagree. BGS instructors are no worse than anyone else, they have a wealth of experience, dedication and time for their students. In fact my personal opinion rates them highest.
The bad experience I had at OAT whilst literally begging them to take me onto their course was disgusting. They couldn't even spare the time to talk to me properly on the phone. Even requesting payment details was a chore and when I finally got an application to join the wretched OAT DL course it was like a mortgage application. Screw them ....
BGS however were ready to help straight of the bat not just initially but everytime I contacted them. They genuinely tried to help even when I'd say "no problem I'll look it up in the course notes", they still offered to explain it further so that there'd be no doubt.
Excellent job BGS and I'd say OAT are too unstable, it's either good or very poor, there doesn't seem to be a middle ground for them, but do I care they can go to .....