The graphic interface is amazing, it is also very user-friendly and easy for developers to iterate, modify and evolve it. Due to its "in memory" nature it is very fast and powerful.
Improvements to My Organization:
It is a very easy-to-sell product. The value added is huge and the ROI is very high since the projects are done relatively fast.
Room for Improvement:
Implement security model for a document can be difficult and slow to implement.
Use of Solution:
Direct Communication, usually quick responses
I have worked basically with CPM tools so this is my first BI tool.
It is very easy to install Qlikview. The important part is to size correctly the servers according to the size of the application and the number of users.
Other Solutions Considered:
In my company we work with many BI tools from different vendors, from SAP and Oracle to Pentaho and Qlikview.
What I have seen is that it's addictive for the users. So if you are an IT manager and you are planning to use another BI tool, try not to show Qlikview to the users or they won´t let you change.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Feb 11 2014