I've read a lot of reports about the G2 being superb but a few days or weeks later just failing to get recognised and thus no longer usable and HP completely ignoring the issue. I haven't determined whether this is a 'few' users making a lot of noise, or a more widespread issue. But, like you, I had tried VR before and the resolution just wasn't there for VR flying, and I also got nausea too. But it is my plan to go VR next and I rather suspect I'll need a new PC, at the very least a new graphics card (currently 1 1080 I think - can't remember; PC is all boxed up while I move house).
Glad you are having a good experience with the G2, long may it continue, and thanks for the positive feedback