Nice...
Honestly, i don't think a BMW is that bad to learn on if you can afford to drop it!
Yes, it is big and heavy, but that engine is like a freaking tractor! It doesn't have any nervosity, no hidden power after a certain rpm, no hidden surprise whatsoever.
Compared to a 4 cylinder 600, which is what most of Europe learns on, it is a lot more straight forward to ride, at least that was my impression trying a GS.