"It looks like Suicide Squad is going to clock in around 9-10 hours based on my capture time. Probably a little shorter if you don't do some boss fights with under-leveled characters." -@DestinLegarie
10 hours is a short game, but for a GaaS that's basically over in a blink of an eye.
Maybe they thought people would be motivated enough to play through it 4x so they could experience all 4 characters, but I think that's a bit silly of them if so.
I heard the story is good but for full price I'm going to wait until it gets a price drop. I'm not really interested in the grinding aspect of the game outside of the main story. I imagine the game will drop in price pretty quickly and to experience 10 hours of gameplay I'll maybe give 20. Maybe.