Coming into another season, and debating what to do with ours, I asked myself this same question. And the answer is yes, if we needed a bike that was beginner friendly, I would absolutely buy it again. As a matter of fact, the tech college I teach Motorcycle Safety at just bought 4 of them after we used my wife's as a bit of a test (no students on it, just instructors).
It really is a pretty good bike, and we've had no trouble with it. Ours did have an alternator replacement before we purchased it, but it was a school bike for it's first year of life (not the one I'm at), and that isn't uncommon. Every bike we have has had stators replaced at about the same rate. The school near the dealership that uses them is pretty much exclusively BMW and has been since the G310 launched. They love them.
My wife is upgrading, and we've bounced back and forth between keeping it and trading it in. It's so cheap to own, and so much fun to ride, it really doesn't matter if we do.