I've been using it for at least 6 years and have had a very positive experience. It's been a set-it-and-never-think-about-it experience for the most part. I th

I've been using it for at least 6 years and have had a very positive experience. It's been a set-it-and-never-think-about-it experience for the most part. I think I avoided the issues that you have just do to a nice (accidental) little quirk, though. I have my Google Voice account associated with my (grandfathered-in) G-Suite address, and Project Fi only allows you to sign up wiht a Gmail address. Therefore, I was able to port my old Verizon number to my @gmail address (which rarely gets used) that's associated with Project Fi and keep my GVoice number where it was, at my G-Suite address. So I'm currently using my Nexus 5X on Project Fi with both my carrier number (which I've had for probably 15 years now) and with my GVoice number (which I've had for 6+).