Reviewers mostly describe Senja as easy to use and quick to set up, with useful organization tools like sorting testimonials by customer type, product, or sentiment. Some users also praise onboarding, integrations, customization, and ongoing fixes. But the feedback is not fully consistent: two reviewers report serious problems with slow, sticky embeds and poor support response, while others say support and founder help were strong. Overall, sentiment is positive on usability and features, with a notable concern around reliability and customer support consistency.