Decided to get it since it came to $35 on sale. It is a Rev.B, so far so good, for the price for a dual band you can't go wrong for a backup router.
I have an old Netgear router that is also dual band that I loved, but recently it is dropping connections, and it is also making loud creaking thumping noises, it is starting to overheat, I always clear dust from it, and I power the wifi off when I am not using it (Netgear routers have wifi power off/on switches on the back), but the creaking plastic/thumping noises tell me it is about to fail.