I have used the wound G once or twice but don't use it anymore. I'm not a person qualified to review strings, thats only very personal opinion.
(+) Brilliant, bright sound, less "fat" than the usual nylon G, longer sustain. The opening chords of Barrios' Andante religioso e.g. sounded amazing I remember.
(-) Wears very quickly, even faster than the D
(-) Strange feel if you are already used to the normal nylon G
(-) One more string to squeak
(-) Sets are more expensive
I have a new one lying around from Savarez, don't think I'll use it. Where do you live?
Btw: You might want to post a short introduction in the "Introduce Yourself" section, so that we know a little bit more about your musical interests and background