I was apprehensive about tackling this job as well but after watching the videos and getting input from other forum members I was able to do it as well. I cleaned mine and my wife's last weekend. My truck is new (less than 3 months old) so it wasn't really dirty but my wife's SUV is 3 years old and has 45k miles. It looked horrible under her hood. Sprayed with water, used APC, used the fender brush to agitate and sprayed off. Then I dressed it with VRT and In and Out spray and even her's looks new again. Now that they are both new looking clean it should be super easy to keep up with once or twice a year.
The videos and forum are a great resource.