HappyForms is highly praised for its ease of use, powerful features, and excellent support. Users enjoy its lightweight nature, seamless WordPress integration, and robust functionality that includes customizable form fields and conditional logic. Many appreciate its user-friendly interface and swift, knowledgeable support team, which provides prompt assistance and detailed solutions. The plugin allows for the creation of various forms, including surveys and payment forms, and integrates well with other services like Stripe, PayPal, and email marketing software. However, some users find the free version lacking compared to other plugins, with key features locked behind the paid version. Pop-ups promoting the paid version annoy some users, and issues with accessibility and occasional bugs are noted. Some are unhappy about data being inaccessible after the pro license expires, and there are calls for improved security in the free version.