I made it. Estoy en Costa Rica.
My AirBnb is gorgeous—all glass windows and doors set in a garden behind high walls so it's completely private. The neighboorhood is uninspiring, to put it mildly, with a highway at the end of the street, but I think it's worth it to have this oasis. (And I decide it's not, I'll move to a hotel in a more charming location.)
I'll take better pictures later but in the meantime, here's the view from my bed taken with my phone. I've already seen a hummingbird in the flowers.
Now I have to get dressed and try to navigate the insanely convoluted San José streets and find the language school that's going to be our home base.