Reviewers see Couponly as a practical, straightforward coupon extension that saves time by finding, testing, and applying codes automatically at checkout. Several say it feels cleaner and less cluttered than other coupon tools, with faster application and fewer distracting offers. The most repeated strength is avoiding manual coupon hunting and expired codes. Still, feedback is not flawless: one user says some coupons still do not work and wants weak listings removed, while others point to support and parts of the interface as areas that need improvement.
Love how the browser extension actually tests codes before applying them, that small detail saves a lot of frustration compared to the usual coupon tools that just throw expired garbage at checkout.