From personal experience 99% of the QF Cadets I've flown with operating as brand new 737 FO's are a credit to themselves and the integrity of the QF Program that selected them. They often have above average IQ (and more importantly EQ), they know and apply dillegently their SOPs, they demonstrate a willingness to learn, improve their skill set and within a very short time demonstrate equal or better stick and rudder skills than many of their GA counterparts.
My background is GA and I say bring back as many Cadets out there on industry placement as we can get our hands on.