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).