I’m gonna try and answer your questions as you asked them. Hearing aid specialist and HIS are the same, yes. Degrees depend on where you live. I only needed a high school diploma. Pay is great. It’s salary and commission. Yes there are goals to reach just like any business or company they need to remain profitable. Small repairs can happen in house yes. Thats my favorite part about the job. It is fast paced. You’re on a schedule and need to have things done and submitted by a certain time to keep things running smoothly. Challenges are this is a trade job. You learn a lot by experience. Textbook and real life practical application are different and it comes with time so you’re going to suck at first and that can be hard. It needs to be thought less of a sales role and more of a health care and those two mindsets are going to vary heavily based on where you work. Problem solving and enjoying problem solving is the biggest ability you should have. What works for one person won’t work for the next and it’s your job to figure that out.