I ordered S with my 90 cm bust and 65 cm waist. The size I received is European 10. It fits perfect in bust and shoulders, and a bit big in waist. Fortunately, the dress goes with belt, so it is easy to fix. Nevertheless am going to adjust it in sides for  it to match my figure. The fabric is just cheap cotton( it was not surprise for me as I read it in someone's review)  but it looks wonderful when put on! I think this dress will be very comfortable in summer. I am going to wear it as casual dress. So I give it something between 4 and 5 points.