There will be 13-17 of us total.

My coordinator said that they've done lots of ceremonies there, inside the room and outside on the patio. Our photographers actually did a wedding there last week and were supposed to email a few photos Monday, but we haven't gotten them yet.
We're going to do both on the covered part of the patio -- ceremony at one end, dinner at the other, with folding screens and floral dividing the two areas (at least that's the plan for now!). We're going to use the WH room for our food location for the pre-reception after the ceremony and then the buffet dinner following.