They are a bit bass light, but if you are purely gaming with them it doesn't matter.
Just because Beats get good reviews on Amazon doesn't mean they are good headphones. Headphones with surround sound are notoriously poor and it's all marketing.
Still, if you want the Astros get them. They aren't awful but are by no means better than a proper pair of headphones for gaming. Plus the AD700s are some of the most comfortable headphones out there. Put a post up on any proper headphone forum and ask people who actually own both headsets.