I have mixed feelings about this site. Some good content, but I have found that many of their sets overlap ATK content, and, in many cases, those same sets are INCOMPLETE
Which, of course, makes me wonder about the sets that don't overlap....
OTOH, there is still a lot of original content, and in at least one case, I found a set of a model that was actually a "continuation" of a set I found on ATK! (which means that the full set was "incomplete" on both sites!
)
If you like ATK's content, I would recommend checking out the site at least once, but be prepared to be a bit frustrated if you are a "compleatist" like me