It does its job decently. Although sometimes for whatever rare, quirky reason, the port-forwards I set up disappear (still there but unaccessible; I got over that...).
I have never try a super-g before, but my old range max was doing the same thing, and I had to reset the router about three times a week. It got better after a firmware update, but I was still having to reset it every week. now i use a linksys n router, it used to have similar problem but the firmware update fixed it.
I figured out my problem by googling it.
sometimes line noise could cause problems too.