Yes, do it.
If it's anything like a Sig 556, which of course it is, buy it. I really like the 556.
It really is like a combination of the AR and AK. The only thing that ever really needs cleaning is the gas system. The bolt area always looks like it just washed up for supper. I don't know what to think about the red dot, as I can't see it in broad daylight. I'm surprised at how well this rifle shoots with the little flip up aperture built into the rail, which I think is a real cool little feature. You can shoot with the aperture right through the red dot without removing it.