All in all: Great way to see Paris! We had a great time and the location is pretty cool! Especially if you're coming from Germany, you get out of the train and are already there and don't have to get into a metro again, but still have nice bars around.
The only thing that didn't work out well was the check-in and the status of cleanliness. I do think that this was an unlucky exception, though: We had to wait with our suitcases outside our door for a half and hour at 6pm even though the check-in was at 2pm because the man cleaning it was a bit late. He then noticed we were there, got nervous and tried to clean everything very quickly - so it didn't end up as clean as hoped. But apart from that unlucky check-in, it's a great place!
Thank you!