I picked Good Knowledge, as I'm very comfortable with all aspects of setting up my equipment (no color analyzer, but Aivia has worked well for me, as has my RS SPL meter). But that's the key...setting up MY equipment. In know it, I researched it, I'm comfortable with it.
Definitely not expert, as there is too much new stuff coming on the market. I felt cutting edge when I started streaming audio from my computer to my home theater!!!