It seems there has been a flood in the market of cheaply made Gillette blades recently that a certain shop who's name starts with Shaver, they were selling packs of blades that would last half the time of the same things that you would pay about 3 times the price for at a supermarket for far better quality.
The thing is, I'm stingy and refuse to pay for the supermarket stuff, so I am glad I found this product on Amazon at a reasonable price. I shave twice a day, ordered these on 11 Nov 2019 and so far I've used 2 blades. Mind you, I do on some occasions use a straight cut safety razor - but only when I feel like a super close shave. That usually ends up with a bit of blood and tears though. I am still learning how to use it to be truthful, but I've been told once you master it, it'll cost you a pack of 100 blades that should last about a year, unless you're a super hairy gorilla. Anyway, very happy with this purchase, especially when you want something quick and that does the job - go for this packet of Gillette is my advice.