This could have been much better with the included pregens being level 4 instead of level 3 and include the option of using any of the other existing pregen classes. As it is, the level 3 included pregens don't stand a chance of surviving especially as a party of 4 (the minimum size). If you want to kill your character, run this as written.
Spoiler:
The DR and hardness ratings are out of whack with the pregens and make the pregens mostly worthless. The construct with hardness 8 is not vulnerable to the stone fist ability which only works on hardness less than 8. Whomever thought that up didn't remember to read the rules.
