There's so many things that I love about this product, from ease-of use in certificate creation/management right through automatic expiration notifications; it has every feature one could want!The support team are incredibly responsive too - when we've had issues there have always been quick fixes available within hours (or ideally days) rather than months, even years like some competitors products require.Certhat handles our self signed SSL certs as well which was great since those used by customers often don't come preinstalled with any CA cert bundle included meaning having access to their own CAs isn’t usually an option unless using 3rd party apps such as Comodo etc..
The interface does break now & again however these seem resolved quickly without impacting service continuity at times over several weeks timeframes during outages where other software would not recover fast enough.