Pros:

• Extremely flexible – thousands of themes and plugins
• Excellent for SEO and content-heavy websites
• Scales well as your business grows

Cons:

• Needs regular updates, backups and security checks
• Slight learning curve if you’re new to web design
• Hosting and support aren’t included – must be arranged separately

WordPress is best if you want long-term scalability and don’t mind managing the back end (or have someone to do it for you).