I have two shops on ArtFire, and I love it there. The customer service provided by the AF staff can't be beat. They clearly understand that without their sellers, they have no business, so they cater to our needs better than any other venue I sell on, including Etsy. The tools they provide for us (the sellers) are plentiful, and I find the site to be easy to navigate and work on. The forums are full of helpful information, and helpful sellers who enjoy helping newbies (and confused oldies) with their shops.
I also shop on AF a lot, and have never been disappointed with a product or the way I was treated by a seller. I've purchased supplies, handmade bags, scarves, bath and body products, crocheted gloves, fine art, jewelry, wood work, and countless other items. It's not very often that I can't find exactly what I'm looking for on ArtFire when it comes to something unique and handmade.
For people to blame ArtFire when they get burned by a specific seller isn't really fair. ArtFire has nothing to do with that, but they will try to contact sellers when there's a problem, and if the problems persist, they close the shop. They don't want our shoppers to be ripped off! There isn't anything they can really do if something like this happens because ArtFire doesn't have the money, the seller does. That's why it's very important to file a dispute with PayPal or your credit card company within the 45 day window when there's a problem, whether it happens on ArtFire, Etsy, Zibbet, eBay, or anywhere else.