Nice product. Very simple though. Basically characters with no background or explanation. I did not go through the stat blocks to determine if they were valid, but they seemed valid. I noticed that one character has a cold iron dagger, not the usual starting equipment.
There is no history or motivations associated with the characters. I think that would have made this impressive and useful. Now its just 'ehn,' because what they did here is no different that creating off the cuff a 1st level level character.