Whats a good web service to set up an online store ?

I know there are tons of websites that offer pretty much the same service. So I need an online service that lets you set up a store and customize it. The big factor is simply how easy-to-use the site and how much customization options there are. I pretty much need a site similar to BigCartel (which does t-shirts only). The service does not necessarily have to be free.

Also please don’t recommend ebay or amazon since I need the store to be unique looking

Btw