What works for one will not for another.
My "Harry's" kit came in yesterday and this morning I used it for the first time. Most comfortable shave I've ever given myself. Razor? Blades? The lather that came with it? I don't know.
Until today the most comfortable shave I had ever had was one of those fancy-schmancy vibrating razors... I think it was Gillette, pretty sure it was.
My son and one son-in-law cannot use the multi-bladed blades... Schick, Gillette, doesn't matter. And electrics won't shave them at all. They use the old fashioned safety razors... double bladed, (two sides)... and swear by them. Those will definitely give me the 'closest' shave but they irritate my face something horrible.
BTW... I believe you, about the blades getting dull. - JamesJM