In this case "amateur" seems to refer to the performers and target niche producing, not the quality of production, which is extremely high compared to most "amateur" product.  This vid is shot, lit and edited fairly well, and the sex is pretty good.  Divided into three segments, featuring two "newcummers" each, this vid and its models can "hold their own" against the low-end pros.

The first and weakest segment "Cumm in My House" features Mark Mathews, a big, beefy lug, doing Christian Jordan, a cute blond twinkie who looks like he's hurting himself when he shoots his load.  Next is "Naval Photography," where sailor Todd Marshall, a WASP-y brunette asks Alex Williams, an average-looking Latino with a huge dick, to take his picture (There's an odd moment where beige spandex and scissors are used in a scene reminiscent of A Clockwork Orange).  Finally, Josh (an energetic little queen) gets hot, butch white-trash hunk Vic to demonstrate his abilities. With a little makeup, some physical training and, in Vic's case, the removal of the big, stupid tattoo across his back, some of these guys could go "pro."