I'd say the target audience is the casual crowd at this early point in the game; people who've never played or play other music games with Guitars etc. Pulsen is a sort of all-in-one package with loads of good content. You know what you're buying and if there's a problem, the work's on the developers to get it fixed, not you. The benefit here is you gain, what we consider, the best charts ever made and no work required to get them.
"...the best charts ever made..."
"...the best charts ever made..."
Also, I love how the programmers try their best to make it seem like they are more original, despite the fact that EVERYTHING was taken from SM5/SSC.