The good news: The game seems like a lot of fun, and the EN version is actually launching with more magical girls to start with than the JP version originally did.The bad news: It's very difficult/annoying to re-roll at the beginning. You don't get the 300 Magia Stones from the pre-registration promotion until the day after you start your game, and you have to complete all of chapter 1 (which can take 15-20 minutes even when skipping cutscenes, on top of any data downloads required through uninstalling/reinstalling the game to re-roll) for a free 10-roll. Until either of those things occur, you only have enough Magia Stones by default to do a couple of measly single rolls. I'll probably only roll a few times before I just settle for the best one I get.
There's also a new event in Revue Starlight ReLIVE out today, an out-of-season Valentines Day event with Junna as the gacha prize and Hikari as the event grinding prize. I don't think I'll type up a guide for this one like I did the past few, since I'll be busy learning my way around Magia Record.
I can't even complete chapter 1 due to the support characters not showing up issue.