Thanks SO much for your input guys! I was a little worried since I'm in the middle of US Cellular country (Pacific Northwest boonies, east of Cascades). I get good signal at home, but doesn't matter because I'm connected to my wifi, but at work there's no wifi, but excellent USCC signal. Also, when I travel, it's usually to a large city, where I end up roaming, like last week in Vegas.
I faithfully follow the TWiT network, and every Tuesday evening I watch their "All About Android" podcast live stream. The latest show mentioned an app that is best used with project fi...it might be the same one you all mentioned. I'll check it out for sure. Now I just need to wait and see what the next Pixel phones will be. can't wait!
p.s. wasn't there a way to +1 someone's reputation?