First I should point out that the quality of the program does not make the quality of the artist. Most programs just make things faster or more convenient for an artist. On that note, I use ProMotion Lite, because it is far cheaper than ProMotion, and has all the features I use.. or at least feel like learning how to use. ProMotion Lite will cost you 30usd, but if you feel like buying the full ProMotion, it's 80 usd..