I had my passenger side one done today, it's the one behind the glove box that controls fresh or recirculated air, sometimes called the air inlet actuator. I've watched the videos and I know this is the easiest one to get to, but I'm a really bad mechanic and I decided to let my independent shop do it. This is a mechanic I have a long relationship with and trust.
Companies should hire me as a product tester, because through a process of massive overthinking and over interpretation of instructions if there's a way to do something wrong I will generally find it, so I let that shop do the work on my car.
It cost $230 for parts and labor, I just thought I would post this so other people would have a reference point if they decide to have a shop do that actuator for them.