I tried it 3 times and kept 3 items total. I wear one of them all the time,and like the other 2 but in general I wasn't overly impressed with the quality of the items and I didn't do it long enough for them to really nail my sizes/body type, so I didn't benefit from the discount they give if you keep everything.
I think it trends younger (I'm in my 50's).
I like the general idea and have looked at MM.Lafleur Bento Box which is more professionally oriented and more expensive. Haven't tried a box.
It's super fun to get the shipment! Show us what you get,and how it works out. The service is really efficient.