I know it's only a closed beta right now but I can't even call this game "serviceable" let alone "playable".
Many features have not yet been implemented, sounds and bgm cuts off randomly sometimes even intentionally (during the Sentry menu) which is a very weird design choice, not much explanation or guide as to what you're supposed to do or can do, and while the character design looks cool, if the tutorial is anything to go by then it's just another "auto battler" where your input starts with assembling the team and ends with "occasionally" tapping the Ult button.