I'm one of the few conversation Lojban speakers, and after years extended study, I've found the language does not meet expectations. When you start deeply exploring the semantics, many constructs are only half defined or nonsensical. Further, the self appointed DFL tries to preserve the language in an unusable state and had alienated most of the proficient speakers.
There are other logical languages out there. Most of them are in development, and are discussed in a Discord called the "Logical Languages Lodge". However there is another called Toaq that is almost complete, it at least as complete as Lojban (its vocabulary is still growing, but all of the essential words are there, and the grammar and semantics are complete). If you wish to learn a logical language in 2023, that's the one I'd suggest.
I didn’t take it that far but asked my parents for the Lojban book for Christmas and did find it fun to work through. Sometimes it’s fun to just nerd out about something totally different to normal :) The year after I got a lockpick tutorial set.
Lojban relies on implicit pragmatics just like any language. It's not that it's unambiguous. That's essentially impossible without also making the language impractical. It's precisely ambiguous meaning that one can be precisely as ambiguous as they intend to be, and provide facilities to this end that no other language has.
There are other logical languages out there. Most of them are in development, and are discussed in a Discord called the "Logical Languages Lodge". However there is another called Toaq that is almost complete, it at least as complete as Lojban (its vocabulary is still growing, but all of the essential words are there, and the grammar and semantics are complete). If you wish to learn a logical language in 2023, that's the one I'd suggest.