It is a beautiful church but brides getting married there should be aware that you have to walk to the church down cobble stones or come by boat and walk from the pier, as the church is almost on the shore and the roads don't go all the way to the church.

 This is a fantastic church with beautiful gold guilding and natural light, not to mention the fresh flowers and being near the sea.  There's also a crypt beneath the church that you can explore to learn more about the history of the church.  They sometimes have art displays down there as well.  A very neat experience.  If you're in Positano, it's definitely worth checking out.  If you're down by the beach, it only takes a couple minutes to walk to the church.