Much better than I thought they would be!
I resisted buying these blades, which I thought were ridiculously priced.  A few months back, I accidentally ordered and paid for the four-blade refills and figured I try them out.  What a difference one blade makes!  Not only do I get a better shave but they last at least six-shaves longer than the three bladed model does!  From now on, the extra price is well worth the shave I get from them!
Rating: 5 stars