Double-edge razor blades are a very individual experience. To use the above post as example, on the shaving forums you will see people who can't shave with Astra without cutting themselves or without irritating their skin, and others who swear by them. And there are many who love Voskhod and that is all they use. I find the Astra blades to be good performers, sharp feeling and easily useful for my 5-7 two-pass shaves a week. Voskhod blades for me don't feel sharp, but they are smooth. The dull feeling is noticeable the first shave after using a sharper feeling blade, but I get used to it.
One of the interesting individual experiences with blades is the influence of the razor. Sometimes just where your head is at makes a difference. Try a blade you don't like after a year, or with a different razor, and perhaps be surprised.
Right now I'm using a brass Karve with 3-inch handle and open comb D-plate. I switch from among many brands in my stash and usually shave with the same blade until I've used up the 5 or 10-blade packet and then pick another. There are differences. Some feel dull but smooth. Some feel sharp but maybe not as smooth. Some feel sharp and smooth. I've found I can shave with all of them, and like I say, you get used to a blade if you use it consistently. There is fun in the variety.
But I do have favorites. Gillette Silver Blue. The 7 O'Clock Yellow and the 7 O'Clock Green. Wilkinson Sword. These feel sharp and smooth to me and have worked well for me in all the razors I've used. I also like the various Derby blades, and I mention this to reinforce the point about individual experience---everyone seems to hate Derbys, but they work for me, and work especially well in the Karve razor I'm using now. Don't go figure, there's no accounting for taste.