As the price for this sharpening system by almost half was more favorable than the MSRP on the homepage of the producer, I ordered the Vulkanus just once. Of course I did not expect that this grinding system achieves annnähernd same sharpening results as when sharpening my Shapton stones. This alone is therefore not possible, as is handled only with two different sharpening units (one for sharpening and for pulling). And of course I would never use this system for my Japanese Damascene blade, for the removal of material is too great. If you want to bring but simply normal knife, as they are found in the majority of households in a very short time (about 20-30 seconds) on a for normal "kitchen use" sufficient sharpness level, this system is highly recommended. Of course, one does not reach a razor sharpness (which also often fails due to the quality of the knife), on the other hand we must not forget that one for a perfect sharpness result eg my "Japanese" also like 30 minutes a knife needs. Überracht positive made me the system even when sharpening my Laguiole pocket knife. Since the grinding stones of this knife is traditionally has a rather hard steel very time-consuming. But even here, this system achieves quite alltatgstaugliche results without the blade inflicting visible damage. The one point deduction gets this system that by the way leaves a very robust and stable impression, only because of the high material removal on the knife to be sharpened. Otherwise, under the above-mentioned aspects readily a buy recommendation.
