A month (or two) with Fi

There are lots of reviews of Google's Project Fi out there.  This is from the perspective of someone who:

• Is switching from a dumb phone
• Makes extremely few calls away from a WiFi hotspot

... so, naturally, it's a great deal for me compared to Verizon (which AFAIK is the only real alternative in the Green Mountains).  I haven't had a chance to test Fi in the Northeast Kingdom, but it's done well in the Champlain Valley.

Things I've learned so far:

• On long car trips, if I'm going to use it to provide directions, I need a car charger.
• Incoming calls appear to continue be routed through Google Hangouts.  Thus, my laptop rings, my tablet rings, and finally my phone rings.  This isn't really a bad thing, but I could wish that it rang my phone before it rang my tablet. 
• I can send texts with the Messenger app, and they are received by the other party, but return texts are routed through Google Hangouts; that is, they never appear in Messenger.  This is actually a Good Thing (tm) IMO, because I like Hangouts and want all of my SMS history there along with my hangout history, but it's a little weird.