Ask HN: What do you use for your online stores and what could make it better?

I've been working on an easy to use ecommerce system to help people make professional online stores without knowing how to program or design.

I'm looking feedback on the current big names BigCartel, Shopify, Storenvy etc and what could make them better. Any ideas? Any complaints?

If you're interested in my project you can get early beta access here: http://launching.leesfer.com

Thanks HN!