Although I live in Canada, I watch the BBC’s coverage on TSN, so it doesn’t affect me much. But I record and watch Speed’s coverage of practice, and I’ve grown to like the commentators. If NBC takes over, hopefully they can broadcast more practice sessions. Personally I find their IndyCar commentators annoying; this year they were explaining defending your position.
But in closing, it’s a move for the best because NBC is a bigger broadcast company that everyone has, and so it should increase exposure to F1 in the US, since there will be two races there