I recently picked these up because of some reviews and articles I had read online. My thumbstick's on my PS4 controller have lost all their grip so it makes it difficult to do any fine tuning on the controller. I have to say that these certainly make aiming and movement in games a bit sharper.
The best thing is the added surface area which is about 50% larger without adding much height, and that they are concave so your thumbs rest comfortably in the stick.
If you're looking for a replacement for the standard thumbstick's look at either these or the CQC Classic.
I would recommend this to a friend
Rating 4 out of 5 stars with 1 review
Great When They Stay On
Bought these little guys because the PS4 controller sticks lost their original rubber grips very quickly. They work great, but don't stay on very well.