Review (5/5): 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!