I just switched my personal web site (this one) over to HTTPS using Let’s Encrypt. My long-time hosting provider, Dreamhost, added support for it recently (January 20, 2016). Both Let’s Encrypt and Dreamhost’s support for it are still considered Beta, but no issues here so far.
I have always wanted to have encrypted transmissions for my web site but did not want to spend the money to get the certificate and and possibly pay for the static IP. Thanks to Let’s Encrypt and Dreamhost’s support for it, it’s now possible.