Politics aside, I never liked Calibri, until last year. I think it has a place for small text printed on paper, but other than that, there are far better fonts out there. The non-sharp/round edges/corners and the fact that it looks a bit childish make me not want to use it in anything serious/professional. It's also waaay over-used by people who don't have a taste in design and just select the default font in their PowerPoint/Word files.

Calibri is a pretty nice screen font. That said, I would rather see official documents in a non-commercially licensed font face that can be used by any/all OSes and platforms without incumbrances.