I should clarify by saying that I have actually played several hours of Gothic 3, on a few separate occassions. It was actually the first game in the series I played, back when I was a kid. While I do agree that it's inferior to the first two I still think it seems to be a decent RPG. Only ever finished the liberation of the second town, though, so maybe it all falls apart later.I'm replaying Gothic, and planning to replay Gothic 2 and play Gothic 3 for the first time in anticipation to play Archolos (after hearing so many good things about that mod).
Just remember to lower your expectations before starting Gothic 3.
Yeah, it's not terrible or anything. It just doesn't live up to the standard they set with Gothic 1 & 2.
The exploration isn't nearly as satisfying due to how empty much of the world is, and it's too long for its own good. There's still fun to be had though.
I suspect you'll enjoy Archolos a lot more.