Users appreciate FluentCRM for its intuitive UI/UX, robust features, and seamless integration with other WordPress plugins like WooCommerce, LearnDash, and FluentForms. Many commend its cost-effectiveness, as it has allowed them to cancel other subscriptions and consolidate functionality within their WordPress sites. The email automation and segmentation features are particularly praised for enhancing marketing efforts. Users also value the plugin's self-hosted nature, ensuring control over their data. However, there are notable drawbacks. Several users report inconsistencies and delays in customer support, which can be frustrating during setup or troubleshooting. The plugin's documentation is often cited as inadequate, leading to avoidable support requests. There are also criticisms of essential features being locked behind a paywall or an additional plugin requirement, limiting its initial utility. Lastly, performance issues, like slow email sending rates for large contacts lists and database bloat over time, have been mentioned.