The WordPress.com Business Edition hosting service by Automattic could be the best option for hosting your WordPress sites.
WooCommerce* is the most popular eCommerce platform on the planet, powering over 30% of online stores. If you choose Woo, you’ll be in good company! Related to that success, it’s also the most flexible, customizable and the most affordable option.
WordPress core – and by extension WooCommerce – cleanly optimizes design output in a very maintainable hierarchy.