In my opinion, you must first finish as you said Hans with issues relating to the sound you are trying and reform of the MB would be very important.
After that one could continue with the modification of the GUI, which I think is a need to "change of air", a new image.
The new look for the GUI, I think you should consider standardizing dB and reference checks all equal to 0 dBFS.
Another point to remember is, all modules have the proper meter level or gain reduction, in order to "see" how the process is acting on the sound.
We all hope for change, but must be given time to mature.