It's neat, I've been talking on Toki Pona Facebook groups, and knowing the language lets me communicate with all sorts of people I wouldn't normally be able to, from all over the world.
I mean, poorly, because I'm still learning, but I like it.
I like the language a lot as a tool for mental health, as the book for the language mentions. There are no hyperbolic words, no contradictory terms like "bad friend", no way to let yourself spiral into over the top catastrophizing language. Every idea must be expressed succinctly and at its most basic level, since there are only 120 words and no niceties or clutter. So thinking in Toki Pona is kinda... meditative.
It also works great, as I touched on, as an interlang, for both parties to learn the one very small and simple language so that they can communicate with each other, instead of having to learn each other's massive languages.
And it's really really easy to learn. So I can push myself to actually finish completing learning a language for once.