I posted about this a couple days ago here...
https://gfy.com/showthread.php?t=1137631
I've got FreshStoreBuilder . It's pretty decent, but they want you to use their Hosting. Plus, their tech support is kinda noobish. The software basically makes store pages that link to amazon links... it even requires customers to login, when they add stuff to cart...that's locally hosted (stat-wise) as well...but after that it goes to the amazon link.
it's pretty amazon friendly as well...as amazon is aware of it..and it allows us to use their API to ingest products daily. But there's a limit...and you can't ingest nowhere near ALL the products that amazon has. You can import thousands though.
Their support consists of both a forum and a ticket system. I highly recommend the Rewrite Spinner that can be added on. You can rewrite literally everything automatically...from URL , Title, Meta tags, product descriptions , etc..