I am missing some calculation functionalities in your software. Would be great to add the hourly cost rate for each person. In our company the rate is different for each type of task. (Photography, graphic design, marketing task etc.). Maybe this rate could be added to ones profile which is then connected to the time spent and a sum is calculated.
An idea for overall calculation is to create a clean calculation custom field, which makes it possible to enter calculation code and make it possible to reference to other fields/custom fields.
We are using another project management software at the moment, but are looking for a new one. We are very much interested in Wrike, as it is more dynamic. However, I am missing the calculation possibilities and more automated workflows where you create your own set of rules.