Alright with potential for more ...

First, the advantages of the product allgm .:
+ The workmanship of the sharpener is completely okay, because all metal
+ The materials used are of good quality
+ Thanks to the bolted housing can exchange everything and clean if necessary
+ It is small and handy and is in good hands in the backpack (field use)

Sharpening:
+ The product reaches a certain sharpness in all diameters, aaaaallerdings: Really high-quality steels, steels with a specific angle (professionals know what I mean, lay people can ignore it) etc. are usually dull or even broken.
Nevertheless, a + for kitchen knives, pocket knives, scissors and the whole 5 clutter in the home is sufficiently sharp and let's face it, what you want for more?
Need The unit has many possibilities for sharpening various blades, an average person is but a maximum of two of them -

Disadvantages of the device:
- The machine adheres somewhat dangerous (compared to devices with hand protection.), You can overlap if necessary
- Many parts are for a normal-mortal not essential
- Fishhook can hardly raise (which I have not had in my entire life ...!?)
- Full-metal is heavy and should stand out on an expedition quite
- The manual is scrap, if you are not simply aims to raise a plain-knife

All in all not a bad product, if you know what you want to sharpen in the next 30 years, as long as the thing when properly use holds namely through.