

I really like that my dishwasher has a window so I can peek inside while it’s working. Besides the coolness factor, it’s also useful to see whether any of the rotors are blocked from spinning or something tipped over.
It’s not a deal breaker if you get one without a window, but it’s really nice to have.
It’s fairly common in countertop dishwashers, but come to think of it, I don’t know if it exists for full-size ones. The one I have is this: https://www.midea.com/sg/kitchen-appliances/dishwasher/MDWS-2703