There are three general attributes for a new knife sharpening system:
1 - price
2 - skill level required
3 - great results
In almost all cases, you can get only two of the three. The low skill systems that produce great edges are expensive. The low price systems that produce great results, require a lot of skill. The low priced systems that require little skill aren't worth talking about except to warn new sharpeners away from them. Their results are mostly advertising BS any way.
The Sharpmaker is sort of a middle of the road system. Not real expensive & it can can produce good edges, but it does require a bit of skill.
The Edge Pro & Wicked Edge require little skill and produce spectacular edges, but they are very expensive.
A $5 stone from the hardware store and the bottom of a ceramic coffee cup can produce excellent edges, but a bit of skill is required.
So, do you want to spend the money or do you want to take the time to learn a skill that will serve you well for the rest of your life? I chose to spend the money on an Edge Pro, but I'm working on the skill too.
JMHO,
Allen