The product is very easy to use and user friendly. There is no need to do any complicated installation or configuration. Its a very robust product. The support team of the product is very helpful in case of any queries. The product has a lot of features which makes it very comprehensive. It is hard to identify one thing which is a downside of this product. We need to use the product in a way so that it does not create any issues for our end users. It has made our messaging process very secure and we do not have to worry about any malware in the system. The product has enabled us to use multiple channels to send our messages to our users/employees. The ability to send secure messages between applications without having to write additional code or use any third party services is great! It's easy for new users to integrate with our software products as well as legacy systems. There isn't much I dislike about it but if you are looking for something more robust and feature rich then look elsewhere. We use this product in conjunction with other message brokers such as RabbitMQ so we can easily utilize its features when needed.