The infamous NAC. I remember clearly when I got into flying many moons ago how people would sing from the rafters about the place. Every now and then someone would dare to post some negative feedback and would be torn to shreds by a close clique of ppruners. 99's would be on here in a flash. Old Richard would post regularly in the Computers forum and give some awesome advice. Then something happened about a year or so back as we don't hear anything from them. Instead there seems to be lots of bad feeling from students . The ATPL g/s seems a bit of a mess, the aircraft are old and tired, people seem to struggle with getting refunds or sorting out their accounts.
Do a search and read about them for yourself. The above are just my observations/recollections from ppruning over the past 5-6 years.