First, the draw rates are absolutely atrocious. There are players who’ve pulled 20+ times on different accounts without a single SS Unit (1.5% chance, and the low ranking units are already only a 20% chance draw. Everything else in the gatcha are...items) and most of the people who preregistered for the game haven’t received anything, nor any of the codes they were promised.
It’s also one of those games that ask you to rate it 5★ with some rewards. Kinda sad.
There’s nothing new or refreshing about the gameplay either. The only nice thing right now are the other players, who are also desperate but nice, because we’re all in this boat together, and the artwork. Girls are pretty, but also pretty limited.
Expected more from such a “top trending” “F2P” game. Spend money here if you want anything exciting and then get bored later.
Edit: yes, the SS units in the game are broken compared to the other units. Prepare to spend for a lot of in-game currency to pull at least ten times of the 10x from the singular gatcha for just one of them, or good luck grinding out fifteen thousand gems. Higher-level features and the competitive aspects basically require an SS girl.