we are trying to upgrade to BI7.Apart from designing, do the end user get an additional features compared to earlier versions(3.0B) in the perspective of enduser only.
Yes...There are lot many features...
1) Improved query performance through BI accelerator
2) PDF reporting you have Java and ABAP stack installed
3) Flexibility of adding drop down menu within BEx report (after execution)
4) The BEx reports looks more organized than that one 3.x versions.
There are more in the list