I have a similar Scheppach version, not sure how they compare on price now but it was a fair bit cheaper than the Tormek (which is well thought of) and uses the same jigs. The one you linked to does have the truing tool which is useful especially if you're not careful with your stones. It will probably also take the Tormek jigs and you may need extra ones which take long blades, axes etc etc.
In use they are easy to set up and use and keep consistent angles on your blades and there are plenty of videos on youtube to help. I won't say they don't need any skills to use but are a lot easier to get very good results than other methods and really good if you have blunt or damaged edges.