Got a Surface Pro 4 and one of the big things was the pressure sensitivity of the pen.
Tried it out on OneNote and it worked great.
Loaded MSPaint, no sensitivity on the pen. Is there a setting I missed or does MSPaint just not support it, if that is the case it is a shame that one of Microsoft's own products doesn't support the feature.
I say MSPaint since I just want to doodle so don't need my Photoshop CC for that.