I do. I blogged about it at https://scarpino.dev/posts/how-i-use-sailfishos.html. Free to ask specific questions if any.

Middle of the night here, this is a quick braindump rather than a proper review.

I have Sailfish on a Sony Xperia XA2. As a phone, it’s a much better user interface than iOS or Android. The gesture interface takes a little while to get used to, but it’s consistent across all applications and behaves the same on all hardware. As a Linux box, it’s fine, but it’s a different distro and some commands are different. If I want to get to the command line, I usually ssh from my computer, so can use a proper keyboard because typing commands into a terminal on a phone screen is painful. There is a free trial of the operating system, which doesn’t include the Android emulator. There are quite a few native apps available for download, covering most requirements. You can run most android apps if you really must through the Android emulator, which is only available on the paid plan.

Happy to answer questions.