Hi
Yes, I've been there a few years back, and I was not very impressed. Even in the tax-free regime, nobody buys watches there. The visit to the Rock is appealing- but honestly had the same feeling that had with Edinburgh castle - very evocative from the outside, very unimpressive inside. If I was in you I would rather go to Ravenna, where there are tons of fabulous Bizantine mosaics, or Ferrara - which is a jewel of a medieval town. If you are there for food and like fish, I would head to Cervia on the coast which has a couple of fabulous fish eateries. If you love mountains, in 30 mins you can be in the Muraglione area, where I would advice a walk into the Aqua Cheta, a place with natural waterfalls and enormous potential as relaxation therapy. If you are there for watches, there are some famous shops - also for vintage - in Rimini. You can also find something in "Arca del Tempo" in Forli, owned by a good watchmaker.
Ciao
Franco