1 - I'm not spending another red cent on sharpening equipment.
2 - I enjoy sharpening freehand and can get an edge that'll shave whatever off of wherever (disclaimer: I haven't tested this 100% but am confident..). In fact I wind up scrounging for stuff to sharpen - speed isn't an issue.
3 - I can use damn near any media and use it well, I'm not tied to my modified bench grinder or any other machine for results. Recently at work I put a hair-popping edge on an old knife using a beat up piece of 30micron lapping film and a cardboard shipping tube.
4 - I frequently take my gear on the road, to work, etc. I'm not lugging a bench grinder around with me EOS.
Glad it works for you. For myself, I don't understand why people don't just learn how to freehand. If I were sharpening for a living I might consider it, otherwise what's the hurry.
HH