Just because something flys great with a fast roll rate doesn't necessarily make it a good choice for a 3D airplane. It's also way too heavy, poorly constructed, and has some nasty flight tendencies. You need to spend some time reading through many of the threads here in this forum to see what some of the more popular 3D planes are. Sure, there are guys who can fly excellent 3D with one of the Goldberg profiles, but those same guys could probably do rolling circles with a broom stick with a motor stuck on it.

Do yourself a favor and talk to some guys with real 3D experience, or at least give some consideration to what different people are trying to tell you in this thread. There are a ton of profile airplanes out there that are better suited for learning to fly 3D than the Goldberg. On the other hand, if you already have the plane, well then, fly the crap out of it and have fun doing it. When you crash it, and we all do, then look around to replace it with something better suited for 3D. By that time, you'll understand what we're trying to tell you.