Best damn bird dog you could hope to find!!! Make sure you find a reputable breeder, though. You will probably pay alot, but it will be worth every penny. Zoomie, my V, is the first gun dog I've ever trained, and I couldn't be happier! They are very trainable or "biddable" as they say. You don't need a heavy hand to train them, where as withthe GSP, I have heard, your most effective training tool is the 2 x 4.
Vizslas are upland maniacs!! They are very high energy, as a good hunting dog should be, and need an outlet, and I mean almost daily! They have fantastic noses and are great on point. I hardly had to reinforce pointing at all with Zoomie. It seemed to come naturally to him. Zoomie isn't a "natural" retriever, its something we work on... Gut nothing seems to stop him in hte field, short of nearly ripping a pad cleamn off. And evcen then, it was hard to keep him still.
In my opinion, you couldn't be making a better choice for an upland dog!
I don't know where you live, but here is the link to my breeder:
http://www.buschvizslas.com/
Many people travel to him from out of state due to his reputation. Jim & Linda are good people who really care about the breed & their performance. There should also be a link to the Vizsla webring from their site.