It was very enjoyable. The tour guide was very informative but also made a few jokes. The mines themselves were a lovely sight and the stories for everything was interesting. It was surprising finding the largest underground chapel and a banquet hall for weddings down there, but its really beautiful. A lot of salt, so I wasn't disappointed.
They also have a food court in the mines at the end of the tour, so if you want to eat in the mines,it is possible. The food was okay though in my opinion, a lot of nice options around the mines.