My girlfriend and I are taking a vacation to Madrid, and we though it would be fun to have a fancy night out while we are there so we made a reservation at Zaranda which seems to have a pretty good reputation. Does anyone know how how fancy it is? What can I expect most guys to be wearing there? I'm trying to pack on the light side for our trip. Would designer jeans and a nice button down be appropriate or will I be the shlub in a room full of suits and ties?