I like that it allows me use my computer as an interface so when working at home I can still do work while in bed or with someone else around even though they are not sitting next to me (when using a laptop).
The program does tend to lag every once in awhile which could be annoying but overall its been really easy to learn how to navigate through all of the features. Sometimes there will be times where certain items may look completely different than what was expected - this has nothing to do with the software itself rather more likely due to changes made by Adobe themselves since releasing their new version of Photoshop/Illustrator. If you're looking for something simple yet very effective then definitely give it try! This app makes drawing much easier because instead of having to scan images into your computer and edit them myself I just draw directly onto whatever image needs editing without any hassle.