(Got this as a gift for my daughter. This is her review.)
The fit is true to size. I love the adjustable waist band. And these jumpsuits are very high quality.
The fabric is very stiff, and I wish that had been described -- although I haven't washed them yet so that could change. The fabric stiffness make the jumpsuits very structured, which the on-line images don't show.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs small, 0 is True to size and 2 is Runs big