I am still a novice, after a few years of sharpening, so this is just my take.... The Lansky system is a great sharpener, especially if you are sharpening only a few knives, every once in while, and they do not have large 4+ inch blades. I have used one on 30+ knives over the last few years and it definitely gets you to a nice shaving sharp edge. I just have the basic three stone set and I always clamp the guide into my bench vice. I tried holding in hand like the instructions, but it was really cumbersome.
I also have a Sharpmaker that I picked up for next to nothing at a flea market. I have tried a few times to use it and even with reading info and watching videos I was not really satisfied. However, there are so many people that love the Sharpmaker and I feel that if I really wanted to get proficient with it I could.
I also have picked up various stones and ceramic rods and some portable diamond sharpeners over the years and use them occasionally when needed.
Then enters the Worksharp! There is a reason for all the great reviews. I picked it up a couple weeks ago and have sharpened/resharpened every knife I can get my hands on. I just picked up a set of "vintage" kitchen knives today and brought them all back to shaving sharp in about 30minutes! This would have taken me 2+hours with any of the other sharpening options I have. It really is great for everything. I started by using the guide on the first couple knives and went to freehand with everything else. I also sharpened an axe and two hatchets.
Bottom line- If you can swing it you should give the Worksharp a try. If not the Lansky is a good system as long as your knives are not too large.
Hope this helps,
Bruce