I visited this WHS in October 2013. The new visitor centre was less interesting than others I have visited in Germany and throughout Europe (for example for Monte San Giorgio). However, the informative video and borehole experience were worth watching. They compliment the 1 hour visit of the pit (with a German guide) and at least they have English subtitles. The price of a ticket for the visitor centre only is rather expensive (10 euro) for what you get. There is also a viewing platform above the pit just in case you miss the 12.30 or 16.30 visits. The list of nature WHS outside the centre was a treat to see. All in all, I enjoyed my visit and the fact that this WHS could have become a mere dump made me feel proud that I supported such an outstanding natural WHS.