I have the knife by accident and out of curiosity just appointed times. I recommend every beginner first a guide to shaving to read with the razor or like me to watch on Youtube. I have always shaved wet, so it was not such a change for me. The knife was ready for use immediately after a short inspection. After small cuts I have now for the third shave the hang of it and will only draw from now to the knife because it is financially worthwhile, and I therefore can better get in shape my beard. There is a small disadvantage of it is my opinion that a change of blades is somewhat impractical since the bearing rail is always something verharkt and the blade sits quickly wrong. But as the saying goes, practice makes perfect.
