One important thing to point out is to not get overly excited with WooCommerce’s seemingly attractive pricing too much. While, yes, the platform itself is free, and all the components needed to make it operational (including PayPal payments, etc.) are free, you might need a number of paid extensions to get some helpful additional features. This will grow your bill.
In the United Kingdom, The Financial Services Authority (FSA) was formerly the regulating authority for most aspects of the EU's Payment Services Directive (PSD), until its replacement in 2013 by the Prudential Regulation Authority and the Financial Conduct Authority. The UK implemented the PSD through the Payment Services Regulations 2009 (PSRs), which came into effect on 1 November 2009. The PSR affects firms providing payment services and their customers. These firms include banks, non-bank credit card issuers and non-bank merchant acquirers, e-money issuers, etc. The PSRs created a new class of regulated firms known as payment institutions (PIs), who are subject to prudential requirements. Article 87 of the PSD requires the European Commission to report on the implementation and impact of the PSD by 1 November 2012.
The contemporary e-commerce trend recommends companies to shift the traditional business model where focus on "standardized products, homogeneous market and long product life cycle" to the new business model where focus on "varied and customized products". E-commerce requires the company to have the ability to satisfy multiple needs of different customers and provide them with wider range of products.
Of course, you could use a standard WordPress theme – many fully support WooCommerce. However, WooCommerce-specific themes are built from the ground up with the ecommerce platform in mind, so they’re often a smarter bet. There are some excellent free choices out there, and you can also find premium options that include more features for a set price.