I'm getting married at the Grand Palladium and they have a beautiful garden gazebo and also a catholic chapel if youre interested in that. I have attached a link to a photo album that has some great photos of the garden gazebo and the private reception area.
del Sol Photography Wedding Photojournalism
The private reception costs anywhere from 50 to 60 dollars per person, depending on the menu you select... so yes, it is an extra cost but well worth it in my opinion! There are some great reviews on this site.
Also, we will be travelling with many children and we selected this resort because it's very family friendly... I think there is a daycare open until 11pm (and the daycare actually has excellent reviews), there are tons of activities, babysitting services, kids pool and play areas, etc...
Hope this helps!