I got lucky and hit all of these problems in my first few hours of trying (much to Fly's detriment, unfortunately). I wanted to love it, but I encountered nothing but bugs when I played with it over a weekend a month or so ago. Internal DNS worked for one but not the other of my nodes; Dashboard accepted my credit card but didn't actually upgrade my plan; SSH console would hang, requiring killing the client process with SIGKILL; my builder hung with a Dockerfile that was literally just "FROM ubuntu" and "apt update"; this failure resulted in `flyctl machines list` hanging and `flyctl machines kill` hanging. Maybe it was just a bad weekend at Fly, but their status page was all green, too.

So many problems between me and even giving fly a serious try. Unfortunate, but maybe in a year it will be better.