Help wanted: Is this OK?

I was given a Montsera(?) cutting and I don't really know if this leaf is too wrinkled? It's a minefield trying to read about and understand if I have over or under watered. I just don't know what this plant actually wants.

My usual approach is to assume I have over watered if a plant looks unhappy, but I don't know if these bounce back after a period of under watering, if I hold back on watering more now.