I stayed at the ParkHotel residence because it was close to the Therme where I was going to spend most of the days on my vacation.
The staff of the hotel is very friendly, as 99% of people in Bavaria, and the hotel is well kept, however the room itself could use some improvements, the bed is terrible, the pillows stink and the shower couldn't stay at a regular temperature.
Furthermore, the elevator was broken for four days so I had to carry all my luggage down the stairs when I checked out.
All in all, you get what you paid for.