I have never tried that system but I have the Lansky and I love it for putting an initial edge on a a finished blade. One knife I sent out the guy was buying it for his grandson so made a special note of telling him that the knife was wicked sharp and too tell the boy to be careful before I ever sent the knife. Once it had arrived and he had a chance to look at he called me. I thought OH OH there is something that he didn't like but no he wanted to ask me about the edge on the knife. He said that was quite possibly the sharpest knife he had ever seen in his life! I told him about the Lansky system and how it worked.
I mean it this way I am an always have been pretty good about holding the right angle to get an edge on a blade. However lets say you do 50 strokes on a stone 25 on side and 25 on the other. If the angle is off on any of that 25 strokes you may be not gaining on your edge. With the angle fixed by the system you waste none of your effort and if you start with the roughest grit and keep up with how many passes you put on each side by the time you get down to the honing stone it really delivers a sharp knife. The first time I used when I got thru with last pass of the honing stone I wiped the oil from the blade with a paper towel. It wasn't till minutes later when I realized I had sliced my thumb pretty good. The blade was so sharp I never felt it cut me and the slice was so clean that it did not start to bleed right away. I have had razor blades that weren't that sharp.
So for an instal edge yes I do like the Lansky System and this looks pretty much like it. I prefer the oil stones to the diamond stones. Why, because the oil stones seem to lay down an edge that lasts longer than a diamond stone. Granted the diamond stones will bring up and edge faster but they don't seem to last as long as a oil honed edge will during hard use. Remember this is MHO and your mileage may vary!