I experimented with LetsEncrypt a few months ago, and found the process to be VERY manual. This was on a bog-standard Debian install running common web software (lighttpd) with a few vhosts. Certbot does not seem to support lighttpd, so it's: download this third party script, run this, copy that, run this, cat these files together, restart the web server process, etc. Sure, that can all be cobbled together with your own mega-script, but at that point, you start just looking for another provider (which OP did). If I were not as comfortable with the command line as I am, I'd have found the initial setup to be daunting, let alone automating it.