I also love Jan.
Which is funny because if you made a list of things I don't like in fantasy RPG he hits nearly every note.
Comic relief? check.
Technology? Check - too much tech makes the game feel steampunk
Gnomes? 2e gnomes were really just variant dwarves and I sided with those who wanted them eliminated them from the game.
But somehow Jan worked. His jokes were actually funny and the game - which starts with kidnapping and torture - needed some comic relief. And his class was both needed and powerful - every 2e party needs a thief . . . And I also found his personal quest kinda touching. Nice representation a chaotic neutral character that wasn't out to destroy the game.