The place itself is ok - nothing fancy, but actually quite charming. However, if they are having an event during your stay, and you want to get some sleep, you probably need to find another hotel.
We had 1 night at Renthof, as a stop during our travel back home, after a 10 hours drive, and before an 8 hours drive. When we arrived, we realized that the hotel was hosting a wedding on that day.
The room we got was small, but cozy, however, sleep was impossible, due to the sound coming from the party downstairs. Not only the sound was incredibly loud, but the whole room was rattling from the bass' vibration. We were given a room further away from the core of the party, but did not help much. That meant a sleepless night, and a bad experience.
If avoiding to rent rooms right above the event place is not a possibility, it would be nice (and considerate) to at least send out a warning in good time, so the guest can choose whether to endure the sleepless night, or to find somewhere else to get some rest.
As a side note, I suggest that the 'sound-isolated rooms' statement from the description here in the page should be modified.