I've found US dishwashers pretty easy to fix, but Korean and German ones can be a bit more of a pain, and these are the ones built for the US market. I've heard that European models often have water softeners built in.
> [...] German ones can be a bit more of a pain
I did replace my dishwasher a few years ago with a Bosch. Uh-oh!
We too have a Bosch dishwasher so - like you - we'll see how that goes...