I've picked up F# out of a need to get things done.

I got sick of learning framework after framework just to keep relevant. F# is niche so it moves a little slower.

The results have been fantastic. Not only can I solve business problems faster, I'm happier with the resulting code. It's easier to read, test and alter.

I've found some languages a nightmare to work with. Specifically Perl and JS. I've seen brilliant code written in both but that takes more care than most put in. If you have pressure to rush and don't clean up it's just a mess.