Well when I asked her if we could have a rehearsal she said it was up to us. We didn't end up having one and I never saw anyone else have one either. Just be sure to ask your WC any questions you might have when you meet with her. Deyanira just told us where to be and at what time. Right before the ceremony she came to my room to drop off our flowers and then we gave her the ipod with the music we wanted to have played before and after the ceremony. That was about it!
And the food tax was the only additional charge they had. Nothing else was taxed. Like I said, I was able to calculate my exact bill before receiving it. I was pretty happy when I saw that!