I am german and had a relationship with a colombian guy for about a year. Before that I went on a couple of dates with a mexican and a peruvian guy.
Eventhough it didn’t work out, I don’t think I’d date a german guy in the future. (Except if he’d be that much into traveling, different cultures and languages as I am and could imagine to move to another country ;) but I haven’t met a lot of germans who think that way)

I think it’s definately worth doing or trying, because you can learn so much from each other. The way I experienced it, there will definately be a lot more problems, simply because of cultural differences, but it’s also a lot more interesting to discover, learn to accept and understand your partners traditions.

My relationship didn’t work out, but that wasn’t because of our different cultures that was just two people not being ment for each other :)