THE WORST THING AUTODESK EVER DID WAS TO DISCONTINUE SKETCHBOOK DESIGNER.
I purchased the whole product design suite 2014 to get Sketchbook Designer and then it was discontinued but it is still the best 2d software on the market.
Please bring back vector layers and tools to Sketchbook, it would be better and more user friendly than anything else.
Even though it crashes regularly I still prefer it to Photoshop, but I worry that I will not be able to use it one day when it is not supported by operating systems etc.