I too am on the fence about getting the colors from the couple. I did that for my nephew and his wife and their colors were not at all what I would have picked. That made me not like the quilt as much - they seem to still love it. I wonder in time when they repaint their bedroom how they will feel about those colors... I guess time will tell
The one that I am working on now I just picked colors that I wanted to use - I guess I will see how it settles with the couple
I think a throw size is a good idea as well. The first quilt I commented about was a king and I found out that the bride would use that on their couch - she loved the quilt and wanted to use it in the living room .. which it was really to big for