When first checking out these pants I was bummed there weren't more user photos so I'm adding these awkward pictures so others can see the fit on another body.

I'm usually a size small, but currently 6 mos pregnant and "fluffy" so upped my purchase to a medium (probably a more accurate size these days). These pants are very stretchy so they are pretty forgiving if you are not sure which size to go with. The fabric is SUPER soft - these feel wonderful.
If you have a maternity body they won't look perfect worn so low (See pics), but it definitely works. I prefer them rolled once at waist, otherwise they make awkward wrinkles at the pelvic region due to being worn below the belly. If you have a more typical non-pregnant waist, this may not be an issue for your body and the pants will land more at the top of the hip bone, or a bit higher.
As for length, I am 5'10 and these just drape onto my feet, barely skimming the ground - so awesome! I expect they may stretch with wear and I will probably wash these in some sort of protective baggy in the machine so they don't get ripped to pieces from a little snag.
Also, the shorts liner is very thin - tried them on with the black underwear I was wearing when I arrived and it's VERY obvious. I think the 2 layers will work well to give some concealing, but expect to wear nude undies below these, or to give a sneak peak to non-nude swim bottoms.