I just got it yesterday, second run. It is very poweful IF you can get them to hit a wall, otherwise it has a fairly unimpressive initial damage (like 45 or 50ish). If they hit a wall it can do low to mid 200s. It's range is not great, and it arcs and curves downward like all her other weapons, except the Schleuder of course. The RoF is poor.
I can see it being very strong on certain levels and very useless on others. I went back with the Schleuder as it is a more reliable and consistent weapons, I just have to shoot at the floor of any enemy.
So, I'm waiting for a more straight forward consistent weapons for Ginebra, ALL of them are gimicky. Her default NEEDS them to hit a wall behind them or another enemy otherwise it does crap damage. Javalin is really good at long ranges, but does crap damage (not normal damage) at short range, which is really bad and dangerous. And the new gun is a sideways version of her default.
I want a futuristic crossbow that does ok damage at close and medium range and weaker damage at far (80 to 100 close, 60 to 80 medium and 30 to 50 far). It would be more universal but not OP. Schleuder is the only weapon worth using.