A bit too much socialization after hours (there is the 'usual' crowd there, but this is changing)
The older side of the company is very "traditionally male", and though it doesn't affect the day to day work it can be annoying
They do prefer hourly to salaried, it is hard to get a salaried offer, negotiate, negotiate, negotiate!
If you are on the engineering team (not management) the bonus is less likely to happen, negotiate it beforehand, again, negotiate, negotiate, negotiate!