The town of Rüthen (twinned with Dereham, UK) - Germany

We went to a concert in Dereham and the Choir from Derehams twin town Ruthen was singing with the Mid Norfolk Singers. Very good the were to. I have never been to Ruthen. Whats it like ?. Is it worth a visit.?

There is nothing special about Rüthen, it's just a nice small german town. Usually I go running there on sundays (lots of hilly hiking trails through woods).