T.F.
I am not experienced with either BUT.... my 19 yr old daughter LOVES Etsy.
She has had some very positive experiences as well. She loves monogrammed things.
Back in June she ordered a custom Duvet and pillow case, custom for her dorm bed (Freshman in college). In July, we found out she would not be getting into the dorm due to shortage. She immediately contacted her Etsy person to relay this message. As luck would have it, she had just shipped the twin size custom set for the dorm BUT... she told us to take the pillow case out, ship it back to her at our expense, send $75 and she would redo it and add another pillowcase. Talk about a good experience!!! I think daughter happened on one in a million crafters because most people would just say so what and keep the money.
We ended up purchasing a condo for daughter and her Duvet cover is very nice. She has purchased monogrammed laptop case for her MacBook, back back, phone cases, small purse,
She has not had issues with anything else she ordered from Etsy. One request for Christmas is a gift card for Etsy!
Best wishes with your venture. PM me if you have some great stuff and I'll make sure daughter sees it!