Bottom line, it's up to the individual to have the right attitude - you get good pilots from 43, as well as bad, just like any other flight school - although the syllabus at 43 is supposed to be fairly comprehensive, so they should have at least covered all the bases. To assume that somebody is rubbish because they trained at a certain flight school is just plain silly and premature - you at least have to get an idea of that particular persons approach to aviation, before you start getting all overexcited. Likewise, anybody with an attitude of 'I did my training at XXX flight school, so you can all lick my boots now' deserves a good kick in the pants. Again, it's down to their attitude.
My 2c.