I wholly enjoyed this Vita game from start to finish, much more than I imagined I would when I picked it up. If you are into anime and Japanese video games like I am, you will find a lot to like about the game. On the upside, the graphics is clean, the music pleasant, the plot predictable but interesting, the characters charming, the dialog humorous, and the battle mechanics simple yet effective. In particular, two hilariously epic battles involving 48 idols will likely stay fresh in my mind for a long time. On the downside, the game suffers from several technical issues such as an inconsistent frame rate and frequent loading screens. Truth be told though, they did not bother me at all, the latter being somewhat irrelevant when I use fast travel to move between areas which shows one of the interesting flyers I collected in the game.
Kudos to Xseed Games for a fantastic localization effort. In fact, their translated dialog is so awesome that I had to constantly "will" myself not choose the funniest response (often the last one) in conversations. I only played the game with Japanese audio and English subtitles, so I don't know how the dub sounds.
So far I have gone through the game twice, accounting for 52 hours of total play time. On my first play through, I got the true ending for Shizuku, with a special "guest" appearance by Nana (who is too cute for words) at the end. On my second run, I got the true ending for Rin.
Anyway, if you like games specifically catered to fans of the aforementioned genres, a trip to the fantastical Akiba is definitely worth taking.