I like that it's easy to use and configure; you don't need any special skills to get set up quickly! It also has many features which are very useful - e.g., we've been able to reduce our number of servers by about 50%.
We haven't found anything so far that we dislike. If there is something missing then feel free contact us directly via support@k2securityplatform.com as they're always willing to help out where needed :) Using this product allows me to spend less time managing my infrastructure & more time working on what really matters (my business).