I haven 't delved in MS Toolbag info that much but since it's currently on sale on steam I have some questions.
As I understand it it's a realtime rendering engine. Having said that I would like to ask fellow citizens if they use it in their workflow as an alternative rendering engine compared to cycles. Also I am aware that Blender's eevee viewport will do exactly that (altho i am not sure if we will be able to use it to render images as well) so am wondering if it's worth it to invest in MS or maybe help blender by donating money to speed up the dev process instead :)