We are having a more casual afternoon wedding and reception with hors dourves and a dessert bar and we are debating the seating situation. There should be about 150 guests and for budget reasons and to keep it casual, I am thinking we are going to do table seating for about half and then provide bistro tables in the rest of the area. There is also natural ledges and a couch if people want to sit but there isn't a table. Does this sound like something guests will be ok with? Or should we do seating for all?