Reviewers mostly praise Loops for being unusually easy to set up and use, with a clean interface, smooth editing, solid docs, responsive support, and a developer-friendly API that fits SaaS workflows like newsletters, onboarding, waitlists, transactional, and event-based emails. Several say it replaces more cumbersome tools while staying lightweight and fast. A few caveats recur: navigation can be confusing, the editor has rough edges, some features feel basic or missing, and its SaaS focus may make it a weaker fit for broader email marketing needs.