Users appreciate the WP-All Import plugin for its flexibility, extensive functionalities, and excellent support. It offers seamless imports for WooCommerce, handling complex product data and large datasets efficiently, thus saving users significant time. Many users highlight the quick and knowledgeable support team, often receiving help even on weekends. The plugin is praised for its ease of use with various file formats and configurations, making it accessible for non-programmers with good documentation and tutorials. However, some users mention the learning curve and complexity, particularly for customized imports, requiring a good understanding of databases and PHP. Overall, it is seen as an essential tool for managing WooCommerce stores.