I have used Gillette Sensor blades for years but have found them increasingly difficult to find in the shops. No blade is perfect so have tried others but always keep coming back to the Sensor. Even Gillette Sensor Excel doesn't, in my opinion, give such a good shave as the basic Sensor and they don't seem to last as long either.
Why anyone wants to use more than a twin-bladed razor is beyond me. I presume manufacturers feel they need to continually innovate and with huge marketing budgets behind the products they convince men that more is best. For me, shaving with more than twin blades is cumbersome. Getting into those difficult places around the nose, for example, is best suited to a fine blade not a lump of hydra-headed metal.
It had never occurred to me until recently to buy razor blades off the Internet. This source should, hopefully, enable me to buy basic Gillete Sensor razors well into my dotage.