I just received my order of 300 Astra SPs. I also ordered 100 of the Astra SS to give them a try. Astra SP and Personna Labs are both great blades for the price. I think the Astras are a bit sharper but the Personnas a tad smoother, but I could live with either as my daily blade if need be.Astra is top blade for me also, along with GSB. I don't understand what people find wrong with it. The only logical explanation is YMMV.