To be fair, the De la Poste is not the only hotel in France with a difficult shower and dim, oddly-configured rooms. Nor is it the only one (as I was surprised to discover-although I had been to France several times before) to frown on the eating of leftovers in one's room (they're afraid you'll leave a mess of 'miettes' and 'taches' behind); and, to their credit, the very agreeable woman at the desk let me check out without charging me for the next two nights, which I had reserved as well. But I really didn't care for 'tude on the male owner or manager.
"On est restaurant ici," ("We're a restaurant here.") he told me as I went towards the stairs with a pizza box from an Italian place (I was dining solo and they didn't have individual sizes). I said (in French) "But you're a hotel, yes? And I'm staying here." "We're a restaurant AND a hotel," he said, pointing at the box and wagging his finger, adding "One doesn't do this. You can eat it outside." I asked him where the trash was, disposed of it and checked out. The Hotel Maxime is a bit pricier, but just on the river, MUCH nicer & worth it. And they must actually own a vacuum cleaner because I made sure as I checked in that you can 'picnic' in your room (an excellent way to economize and take advantage of farmer's markets, fresh produce, cheese, bread and wine in France. Or pizza).