Don't know who's been giving those 4 stars but they haven't been very demanding. First of all the hotel would have been impossible to find without a taxi, the place was so far from the centrum that you have to take a bus and a Metro, or a boat that doesn't quite get there.
Secondly the WIFI connection didn't work inside the rooms - we had to sit next to the reception. There was no personnel in the restaurant so we left to the city centre. The shower was calcified so the water went all over the place, there was some kind of thing buzzing every five minutes in the room and the hallways smelled like some massage oil. The breakfast and the beds were alright though, lifting the place to maybe 2 stars. Oh yea, the computer for quests was crappy, you couldn't put two same symbols (or for example use the delete -button twice in a row) on the keyboard after each other so writing was very annoying. The rooms were clean but very old looking.