I've played the game, and I understand why most phones aren't compatible with it...actual 3D sprites, homescreen being the rooms + characters in 3D; and the models are almost close to the original iM@S console games? Thankfully my phone can handle it, but the 3D is still fuzzy in some parts (like the rooms) and it's taking a long time to load things and sometimes lags.
I got Haruka from the pre-reg SSR ticket when I first started but gave the acc away to my friend who wanted her. Later I rerolled a bit and got Tsumugi, the one I wanted the most !! Her awakened art is really gorgeous..? I love her outfit a lot, especially on 3D with
her solo song! (Also, didn't expect a solo song for Kaori and Tsumugi this soon- but I'm completely fine with more contents for the new girls~)
So far, the game looks promising enough. I can see myself playing this game for a long time, like Deresute.