Is everybody perfect? Mistakes are made. The guy who opens up the box at the mail box, and starts to assemble on the front porch, hasn't followed a basic rule. CHECK THE CONTENTS FOR MISSING OR BROKEN PARTS FIRST!
On the other hand, I've heard complaints about "too heavy" or "Under powered" in some ARFs, especially when they are lower priced than you might have expected. Then a bargain is not a bargain![img]i/expressions/face-icon-small-smile.gif[/img]