I'm old school, I just use a wet stone, I have one in the kitchen, I keep our knives sharp enough to shave with.
We recently went over to some friends house, my wife was helping out cooking dinner, and she asked the hostess for a "Sharp" knife....... The hostess said "that IS a sharp knife"........
My wife asked the hostess if she had a wet stone (Japanese home) and they did, I got called into sharpening duty, firs thing I did was soak the stone, then I went outside, in their carport and flattened the stone, and went to work sharpening the knife. When I had it sharp enough to shave the hair on my arm, I thought I was done.......... nope........ I ended up having to sharpen ALL the knives in the house
Serves me right I guess.
I was a bit worried the Host would be put out, but he had no problem at all, he said he told his wife YEARS ago that the knives were dull, she told him to get out of her kitchen
This Lansky system does look interesting, but for me, a good wet stone, and I'm in business.