The razor "ZERO" is also available at the discounter Norma. For 3.79 euros, including three 3-way blade. It is identical to 100%, I can say with certainty, because I have both. It's not a bad razor, but you should know that he is nothing special in fact.
Of course, there are four 6-blades instead of three 3-way blade. Whether one but 4 euros extra costs are worth, everyone must know yourself. To give away the version of Shave-Lab course is more appropriate to give due to the noble packaging, but then a little more fancier than the Norma blister).
For razor itself: I am happy with it. Although it springs in one direction only (not sideways), but that's enough normally also. I shave my whole head with it, without any problems. By the time he is somewhat unsightly, and the rubber begins to stick to, but I guess that is in the nature of things in contact with shaving cream / gel / cream.
The price of Shave-Lab is not totally covered but now at least you know that it's even cheaper.