I've been playing [Alchemy Stars] since the release, which is just a bit more than 2 days by now. I haven't played in CBT, unfortunately. And I don't have much of general gacha experience. Gachas I've played are Genshin Impact (a few months), Arknights (over half of year and I still play it), Azur Lane(1 day), Counter Side (1 day) and Blue Archive (BA)(2 weeks). So there will a lot of comparsion with Arknights (AK).
Haruna is an attacker of the attack type "mystery"! While using the normal skill to inflict high damage on one enemy at regular intervals, the EX skill can inflict large damage on enemies within a straight line range!
F2P's Take on Nier Reincarnation at Launch, If you need a quick one liner to make or break the game for you, here it is: "Its basically a PS2 turn based RPG produced by Yoko Taro with all the normal gacha features."