The back end and the front end are both very user-friendly. There are a ton of features and the form layouts it generates are attractive. There is a feature-rich free version but the paid versions are also very reasonably priced. Best of all - the customer support is outstanding! I had a few minor issues with my form, and got a very quick response and resolution from their support team. The form can be implemented many different ways, including using an embed code to an existing site (e.g. Wordpress) or accessed directly via a link. I also like that the form submissions can be viewed a few different ways in the backend, including as a PDF, an exported Excel file, or a simple list.