First use of PaintTool SAI, so I decided to try a speedpaint on it to get use to the software interface. I really like their Brush's blending functions, and their "stablity" setting for the brush, which guides how smooth your line is. However, I still prefer drawing lines free hand, since it has that "done-by-human" feel to it. Did just a slight adjustment on the layers in Photoshop though.
Not much... just painting and drawing.