I got one in a funny trade once and then sold it. I never planned on using it so I never gave it a real shot. That being said, it seemed kinda clunky and designed specifically for beat oriented music. I don’t think there is any real sound clarity that would be useful for mixing. On the other hand, I would imagine that it could be very inspiring and fun to make beats with or to make compositional decisions…maybe.
My opinion about mixing low end in your case is to get really nice headphones that reproduce low end well. I don’t have a lot of experience with different models, but (in that same trade) I got Ultrasone Pro 900 and they are crazy good. They are also crazy expensive though.