By who?

My experience with it is that it flys like a plastic brick, if you can get the motor running right.

I would highly recommend you build a profile style balsa kit. A Cox motor is OK, but the plastic tank and rubber fuel line in the PT-19, as well as the funky way it's all held together make it difficult to run in the PT-19.

My brother and I have taught a lot of kids to fly C/L with a Goldberg Lil'Wizard. A good next step is a Sig Skyray. There are a lot of similar kits still available. They're easy and fun to build, and will fly way better than plastic. And when you crash them, a little CA and you're back in the air, whereas, I've not yet found a glue that'll stick that flexible plastic PT-19 back together.

Phil