We stayed here in May 2008 for one night. The room was large, clean and nicely furnished, TV and small table and chairs next to the window which overlooked the river.
The location was central to everything and was quiet. Breakfast was pretty good and the family/staff were friendly.
Parking was out on the street in front of Pension for a charge made to the owner. Cost was about 5 euro per night.
We would recommend this place to stay in Passau.