I watched the Appliance Parts Pro video and saw that it was a job that I could easily do. I ordered the Rotor Position sensor switch for about $21 on a Monday and it was delivered by UPS on Wednesday. The process was straight forward: 1) remove the back cover from the washing machine (4 screws), 2) remove the main bolt holding the magnetic drum on the motor; 3) remove the 6 bolts holding the coil on the motor; 4) remove the ground screw and wire harness clamp screw; 5) take the old sensor switch off by gently using a flat head screw driver to release the clamp; 6) put the new sensor on. Reverse the process to reassemble. I did have my son hold the drum from inside the washer to prevent it from turning to both loosen and re tighten the main bolt. Also the main bolt is 17 mm, not 15mm as described in the video. The six smaller bolts are 10 mm. You will also need some blue, medium strength Locktite to apply to the main bolt upon reassembly. You definitely don't want that bolt coming loose from the constant vibration of the machine. You will need a socket wrench with an extension to get enough leverage to loosen the main bolt and someone to prevent the drum from turning. Some have mentioned using a broom stick shoved into the inside of the drum, but I preferred using a person.
The whole process took about 2 hours not 30 minutes but that includes moving the machine, gathering the tools, making a run to Home Depot for a tube of Locktite, and going slow to make sure I was doing it right.
Upon reassembly I did 3 loads of laundry on two different cycles just to make sure everything was working OK. It was a cheap and simple fix. I assume I saved at least $150 on a service call and marked up parts plus I didn't have to wait 7-10 days for a service call.
If you have average mechanical ability, have the proper tools (Phillips and flat head screwdrivers, sockets, not adjustable wrenches or box/open end wrenches), can follow instructions on a video, and are patient enough to take the time and do it right, then go for it.