Negotiate your pay before getting hired or do not take a job here. You will regret it. Big time. The laid back environment can set you up for failure. You have to set goals for yourself and motivate yourself to go above and beyond or you become complacent and you will be stuck where you are.
You are going to be doing more than you expect to do. The task expected of you for your position is false, you will be doing a lot more than you bargain for. Sales & Marketing are extremely short handed for the amount of work expected from the team. You will be doing 2 or 3 people's job.
As a new employee you either know what you need to do or quickly learn how to do it. Working here is like learning how to swim. You go to a swimming class and the instructor kicks you into the deep end of the pool. You'll either drown or you'll learn to swim quickly. Do not expect managers/supervisors to properly train you. The managers/supervisors are all working 2 peoples job already and training new hire is an added bonus. Make friends quick and learn what you can as fast as possible