I'm scared to join a union job
Why do you think that you are scared of the union job?
I'm just scared of joining it
If the job has all the things you are looking for then it would make more sense to take the job. If you are just not feeling the whole union situation then maybe doing some research could ease your mind a little since you will be more informed.
I don't like to join unions because it's just a control over organisations.
Just think of the paycheck though! A paycheck that good is going to be hard to turn down.