* Do you use the same Google Voice number as your actual Google account phone number, or just for other sites? If the former, how does it work with Google 2FA (ie if you are logged out of Google account I imagine you can't access you Voice number either?)
* Are you concerned with losing access to your Google Voice number if Google decides to ban your account one day? Regular phone numbers seem a bit less nebulous in that phone providers don't seem to just suddenly decide to ban you and your number as much as Google, Amazon, et al. Then again I have no data to back up this impression.
* What made you pick Google Voice over another VoIP option?
* Do you worry about Voice going away with Google Fi?