For everyone who has purchased the game, be sure to fill out this survey: http://www.sega.com/pdf2survey/
(Psst: if you hate linked stars as much as I do, you should totally leave feedback and ratings reflecting that!)
That hasn't stopped anyone from doing it anyway! My convention save has nearly every song set to feature a shirtless Len.
Yeah, I'm glad I caught that survey from the game's pre-title screen on Vita.
Ripped into linked stars, achievements that are setup purely for grind instead of fun, and suggested they revise the Easy/Normal/Hard/Extreme setup so that more hardcore players can just jump to Hard/Extreme and get unlocks faster without having to bother with Easy + Normal.
I'm so glad I can use the thumbsticks for stars on Vita now though, feels a lot more natural so I gave them positive feedback for that