I totally second what Yves said : being able to kill the process if something wrong happens would be a significant improvement !

Here's a bit more feedback as well :

I reckon that despite the HUGE improvements brought to the GPU simulations, I still have issues from time to time when scaling down the mesh, the mesh completely explodes. With same parameters, CPU sim is OK but GPU isn't. It's unfortunate as VWD can also be very helpfull for fitting clothes that were made for other figures and playing with scale can do wonders to acheive that.

Finally, I would appreciate an option to "remember" the settings between 2 simulations. For instance, when unchecking the box "Start" or unchecking the box "dynamic animation", i'd like the software to remember this as my default setting.