I finished up some Jenny Overalls today. I cut a size 8, and I think I could size down and be fine, but I wanted to be sure I had room to wear a t-shirt underneath. They are super comfortable. I plan to make the trousers too. I am going to have to size down for them.
Generally speaking, I have trouble with waistbands. All types - all the time. Ugh. This waistband worked out great (the zippers are kinda wonky though). I made the 2 zipper version because I think it looks cool, and I was too lazy to do a test fit.