Hotel room itself was fine aside from thin walls, and onsite staff were of average politeness (not friendly or welcoming, just minimal politeness) but communication before our stay was terrible. We wanted to upgrade our room from a double to a triple as another person joined our trip, but instead of charging the difference of 178 euros as posted on expedia as well as their own webiste, they charged us 230 euros. Their tone was incredibly rude and dismissive, when asked why such a difference, all they stated was "because this is the cost of the supplement" (that was the entire email content). I would have cancelled if I hadn't booked a non refundable rate, it was the worst and most frustrating interaction I've ever had with hotel staff. FYI we stayed at 3 other hotels this trip and had to add an additional person for each and every one of them charged us the difference AS STATED on their website and expeidias.