If your expectations are not those of spacious bathrooms, luxurious beds and bellboys carying your suitcase, then you won't find too much hardship in staying at this one star location.
Bathrooms are tiny, but have a working shower and toilet with warm water (there are some rooms without their own amenities).
Beds are fine, room looks a bit oldfashioned, but you get more then you usually do for less then 50 euro a night. The rate is totally fair in my opinion.
Book with the hotel it self to avoid having to pay the 5% tourist tax on arrival.
Location is easy to access from central station with loads of busses.