Husband's Smooth Face...
I couldn't tell you how it works other than the fact that I love how my husband's face feels after using it.  He seems to like it just great.  We are firm believers in the Norelco brand.  It seems to be very durable.  I bought him this one because he had one that was who-knows-how-many years old.  It was still working fine, but I thought it would be fun for him to get a new one instead of just buying those replacement heads.  That's the one thing I don't appreciate about corded/cordless razors in general is that it costs so much for replacement heads.  Overall, what a great product!  I highly recommend it!
Rating: 5 stars