Anyone Using Google Fi for Black Hat Projects or International Operations?

Hey BHW community,

I’m exploring Google Fi (formerly Project Fi) as a potential service for international operations and possibly black hat projects that require consistent mobile connectivity across different regions. Since Google Fi can switch between multiple carriers (T-Mobile, Sprint, and U.S. Cellular) and offers international data in 200+ countries, it seems like a solid option for mobile anonymity and flexibility.

Has anyone here used Google Fi for:

1. VPN or IP switching while traveling?
2. Bypassing geolocation restrictions for ads, tools, or web scrapers?
3. Managing multiple phone numbers for online marketing or bulk messaging?
4. General performance (speed, security) compared to other MVNOs?

Curious about your thoughts on how well it works for these use cases. Any tips or limitations to keep in mind?