We are a family of four with small children. We stayed here for one night. The hotel is very nice, excellent food, and close to the river and within walking distance to the Boppard Klettersteig (The chair lift that takes you to the top of the large hill). There is a playground just two doors down from the hotel, so that was nice. The hotel has a small parking lot in front.
We stayed on the forth floor (had it all to ourselves) the rooms were slanted, so that was a bit awkward, but it was nice to have three bedrooms all to ourselves. The hotel staff were very nice and we really enjoyed our stay. Breakfast consisted of coffee, tea, milk, juices, bread, jelly, yogurt, dry cereal, meats and cheeses and hard boiled eggs.
If location is what you want, this is a good hotel. Very reasonably priced, especially for what you get.