First, the positive to the shaver: As already described have several others, the razor caused visible less irritation than its competitors. I seem to have an extremely sensitive skin on the neck and so far I was forced to shave wet, even though I have been given an expensive Philips shaver. The skin irritation after shaving with the part just were not worth it. Since then I have the Cooltec CT4S, I shave only dry and have to say that members of the annoying irritation of the past. This part fits comfortably in your hand, is processed fairly valuable and has a travel case included. Now for the negatives: The thoroughness of the shave unfortunately leaves much to be desired. Man must very often nachrasieren at certain points in order to achieve a reasonably acceptable outcome. Because of the razor must be received after 3-4 shaves the grid, which we already had in the second negative aspect. The battery life with the activated cooling is not so great. 3-4 shaves are extremely low. At home the whole thing is of course not a problem, but even for a 3 day business trip you should always wrap the AC adapter with you when you do not want any nasty surprises. Without cooling, the part holds true for much longer, however, arise, unfortunately, again the skin irritations on, what qualifies as single, real advantage of the razor. For me, in spite of a recommendation to buy, because I shave rather longer and more often go to the grid, instead of going with many small, red spots on the neck to work.