I've used the PA one. Propoint brand I think.
I did not do pretty work. But I managed to glue something together that was totally fucked and had totally fucked my day.
One of the guys at work is pretty good with it and has managed to fix a ton of stuff. He's also a bit of a body man, so he's pretty good at sanding it out and hiding everything.
Oh yeah, get some airflow when you do it, or you'll quickly be making as much sense as Justin Trudeau.