In the so-called dual system the hairs are recognized by an epilator and removed at the root and on the other hand, the hair, which for various reasons (too short, too thin) are not covered by epilators, removed by the razor.
When you're done with the application, so it definitely has smooth skin; and that's what matters to me.
The hair that I have at one time do not get caught with the epilator, I catch then stop next time epilation and on time I get too smooth skin for a prolonged period.
Two small "problems" I have, however, found in the application:
1. In applying shaving with water and "wet" work the blade very well, but it seems for the epilator to be more difficult to grasp the hair and in a train the hair are removed mainly by the razor blade, resulting in that after a few days again need to remove stubble. But this method is gentler on the skin.
2. In the "dry" application of epilator caught the hair really good, so hardly the blade used is to remove hair. However, "rubbing" the blade at least for me with dry application heavily on the skin surface, so that the skin very scaly and is very red and irritated after using and burning. I know that as well as from other razor blades for dry application. For sensitive skin, this application is then rather not recommendable.
Conclusion: Overall, a good invention to quickly get really smooth skin.