There are a number of ecommerce aggregators out there that look great, but can be clunky and/or expensive to use. Shopify has grown in popularity because it is easy enough for even complete beginners online to use. So if you have already set up a store at another commerce site, not to worry.
Shopify will help you to migrate a store from another major ecommerce aggregator such as BigCommerce, with a minimum amount of hassle and without having to start a new store from scratch. Learn the essentials for making your move in this video.