Anyone Using OpenZFS?

I hear a lot about the virtues of OpenZFS, which is available
for GNU/Linux albeit, due to license concerns, only in a roundabout
way.  A separate external module must be compiled and then added
to the kernel.

Since my programming predilection is HPC/scientific/engineering,
I know little about disk I/O concepts.  So answer these questions
if you are able.

Is OpenZFS suitable/recommended for a desktop workstation?

What are the benefits of OpenZFS compared to EXT4?

Is OpenZFS stable enough to be trusted?

I will appreciate all responses.


--
Systemd: solving all the problems that you never knew you had.