The only thing future guests need to know is this: there is no air conditioning in the rooms.
We stayed during the current European heat wave, and the room was unbearably hot, especially at night. There was simply no way to cool the room down. The only air-conditioned area was the lobby, and many guests came downstairs at night because their rooms were too hot to sleep comfortably.
I won’t comment on the breakfast or the room itself because, in these temperatures, none of that matters. If you are visiting during the summer, be aware that the rooms do not have air conditioning. This is something guests should know before booking.