Ask HN: What are the best SAAS options to set up an online store?

A friend of mine has a designer garment & jwellary business and she wants to setup an online store. I think instead of using a custom made or open source option it is better to use a SAAS provider for a couple of years to see how it goes.

So, who are the best SAAS e-commerce providers right now in terms of features & quality of service?