I would say it depends on what you are looking for.
If you are looking for some vest for people to be able to use in different sizes that don't look like they are from the 80's than I would say go for it. I loaded my boat up with neo vests from costco for like 35 bucks so that people that I take out don't feel like they look like tools out there. For the record I tow a bunch of high schoolers and image is a big deal for them.
I would say buy one, if it doesn't work the way you would like it to, buy a different one that fits you well and that you like, but don't let anyone use yours. If they are the same size as you, let them wear this one.