Material Quality A+; Engineering C-
This set of Aries step bars is made of good quality materials. Everything heavy duty. The engineering for installation on the late model (2006-20012) Nissan Frontier CrewCab rates low, though, mainly due to poor configuration of the stiffening brackets at all 4 mounting plates. We had to fabricate a new set for the rear mounts because the factory-supplied ones were literally not going to fit without heating, twisting and grinding. If I hadn't had access to a fully-equipped shop, I would have either returned them or had to pay to have them installed. By the way, the rear support brackets as designed require inserting part of the bracket inside a rubber-plugged rocker panel hole which was NOT intended for that. THIS IS A BIG NO-NO! Do it and you will have internal rust inside the panel within a short period of time. DON'T DO IT!
This is where you definitely have to fabricate a different bracket similar to what is used by other brands. Having done this installation (different brand) on another Nissan, I knew exactly what to do. In the end, the result was a great looking, solid installation. But, I figure it would have cost me at least $350 to have them modified and installed by a shop. This Aries brand might have better designed brackets for other trucks.... not for this Nissan model. If you have mechanical experience and tools, this Aries product is still a good buy because of the high quality materials... otherwise you will not be happy with the results.
As far as AutoAccessoriesGarage is concerned, they rate AAAAA+. Great service, recommended.