Sirius - Experience
Overall I am happy really satisfied with this software .It allows for great integration whit othe apps.Every year it becomes better and better .More you use ,easier it becomer
It is easy to use . Everything is clear visualisations and design of the program make you comfortable to use it , Searching for other CMS development resources easy .They are everywhere.
Security : when powering 20 percent of you web you can be hacked.It difficult to reach customer service :(