Hello! So sorry it's taken me a few days to get back to you. OK, I admit that for the most part I didn't finish my seams. My fabric is pretty good at not unraveling, so that was lucky. I also didn't use the pattern's sleeves, which I found to be ill-fitting, so no gusset for me, either. But I did do French seams on my chemise, which did have gussets in the sleeves. I wasn't very "authentic" when it came to seams on this gown, I admit! Even my hem is done on the serger because I couldn't bear to fold and pin all that fabric.

Definitely ask koshka_the_cat as she is really knowledgeable regarding seams and the like. Or join the chemise gown comm that she started and post your query there. That way you'll get a variety of answers and pick the one that suits you!

Good luck!