Perfect? So I guess yours must be free from some of the defects that mine has, such as:
+ Scavenger's toes being prone to falling off due to the pegs being too small (see here)
+ Long Haul's back panel being unable to properly lock into place in robot mode due to the back peg being too small (see link above)
+ The inferior grade of plastic (not visibly noticeable, but it does feel different)
+ Inferior sculpting on certain places, like Long Haul's front grille (see here)

Maybe your set is free of these defects, 'cos otherwise I wouldn't consider them to be "perfect." :/