poorly designed heads fill up fast [SEP] the biggest problem with this design is that if you have a heavy fast growing beard is that you may have to stop and clean it mid shave there just is not any room for cut whiskers in the tiny heads and where a heavy day growth is a maybe a day growth is way more than it can hold i think that may be why some people complain about the closeness and or speed of the shave it works really great until it loads up with fur and there is no room left for more this is really a razor for those that have a light growth or shave twice a day cleaning it thoroughly each timenote to norelco increase the cut whisker capacity in next years model