I had a Binsi skirt that I borrowed from my midwife, and the Binsi thankini tank top that I bought. I loved them! No hospital gown! Avoiding that "sick patient" image was important to me. The skirt is fairly simple to make if you are handy (I'm not, hence the borrowing!).
A couple points: The waist is very low, below belly. The waist has a drawstring. Good points by PPs about the vents and tucks. The Velcro up the front can be really scratchy - I would have preferred snaps. (They have two types depending on cost, I think.)
Now, the tank top is what I really wanted. I figured a generic skirt might be OK, but not the top. It is a really stretchy material, snaps up the sides, a lightweight shelf bra, and hooks to unhitch both straps over the shoulders. This is really important if you need to remove the top and you have epidural lines or IV lines that would get in the way. It would allow very quick removal for skin-to-skin as the baby is born if you still have it on.
HTH