Not a very a durable blade, but what a comfortable shave! I got these free with a razor purchase and enjoyed a very smooth shave. I was very surprised, however, afterwards to find stubble in the three difficult spots that I use a three pass (down, left, right) method. I don't know, but the blade slid so comfortably over my head that it passed over the whiskers too.
Pros: cheap, seems sharper than Astra SP, forgiving.
Cons: Lasts me 3 shaves.
I have tried these blades in my Gillette Rocket. I don't shave everyday, usually every 4-5 day.
I shave with the grain, then across/with the grain. Usually 2 passes.
The green Astra SP blades only lasted 2.5 shaves. Little bit of tugging.
The Ladas SS blade lasted 3 shaves. Felt sharper than the Astra SP. Smooth for the 1st shave. no irritation/razor burn. 2nd shave getting noticeably dull. some touch ups needed. 3rd shave was ok. Blade was ready for the trash bin. Managed to get dfs on neck area. Some irritation.
These blades work fine. Better than Astra in my case. I much prefer Feather blades, far longer lasting & sharper/smoother.