update: thanks for all your insights! I gave in and bought Pixinsight and bluXterminator, knowing that its the best software for astrophotography. I already had my testtime with it, so I'm just trying to perfect my workflow for the best possible outcome...

old:

So I'm editing all my images with Siril (stacking, stretching and star removal), GraXpert(noise reduction, background and deconvolution of objects) and finally photoshop for all the composing and editing.

I had tried Pixinsight with bXt and although the gained details where quite astonishing (I guess thats why its used so much in the first place), I think the software is awful in terms of user interface.

So, any thoughts on this are welcome!