My brother got a GSP/Lab cross. The dog is a decent dog, but it's an idiot.
I blame part on him, and part on the dog.
The dog looks just like a lab, but it points and has the endless energy of a GSP. So looks can be deceiving when you expect lab.
My dad has a pudelpointer/lab cross because my friend's pudelpointer got involved with the neighbor lab. That's a good dog. Not nearly the energy from the GSP. It swims, retrieves, and points. It's not a big dog at all. I don't think this dog is as good of bird dog as the viszlas we had growing up, but she's a good dog. A little bull headed and can hunt for itself instead of the boss. But a good dog and good family dog.
I got a chocolate pointing lab about a year ago last year. He's starting to point a bit, can't stop retrieving stuff, has a good nose, is a horrible swimmer (and after lots of practice) isn't much better, but is a great family dog.
My season of life is I need a great family dog and a pretty good hunting dog as the dog will be family more than hunting. We only hunt 4 months a year and train and play as a family the rest. So, I'll take a great family dog.
Bottom line, get what works for you. If you like the temperment of the dogs, it could be good. If you're looking for a purebred, it may not be what you want.
My experience with my brother's dog is it has GSP energy without the GSP grace and agility. Bull in a china closet type thing. Ok hunting dog, but that could be he doesn't spend enough time with it running the stupid out of it.