...from an American who's been living in Europe for a few years.

The toilet-tank thing: I think it is just a style, that they prefer not to see the tank. It only seems odd to those of us who are used to seeing it and don't think anything of it. Just one of those things that's not wrong either way, just different. Did you notice the toilet-paper holders?

About the double-single beds: I think it's mostly to give the hotel rooms more flexibility, that they can be used either as a 2-bed or 1-bed room. Easier cleaning is just a bonus, while less comfort for couples is a downside.

And I agree that good bread is easier to find here.