I just came across your Estimator Plugin. For my current project the investment is to big to buy the full version. Nevertheless I will keep it in my mind since it looks very promissing.
I will definitely be using your take off area plugin. The only problem I have is its accuracy. It is very nice that you already support the metric system, but for my projects I need a more precise estimation of the area than m². Is there a way to add new units like in the full version of estimator or define the number of digits that are displayed for the total?
The forum and the videos of take off area I found did not give any insight to this problem, so I suppose I is currently not possible.