Played on release and then stoped playing for half a year then I came back and never stop playing since, the only gacha game that I like the story and gameplay of.

While not the most entertaining it respects its users time by letting you breeze through the daily missions in like 10 minutes or so.

Took me a long time to catch up to the story but I don't regret it, while some volumes are better than others the 3rd one in particular "The Eden treaty" was an amazing experience.
The gacha rates sometimes feel like a lie, but this is expected and the worse thing is that the spark isn't maintained banner to banner which sucks.

Give it a shot I have a blast and it's my biggest guilty pleassure as of late, I love the designs and the stories are great.