I think with this purchase I made a new chair... Even though it's very old, I feel it like new, just be a bit careful with the side slipping, otherwise excellent performance for their value.. 130) kilos are talking now... It is value for money

On laminated flooring they are just fine.
They definitely roll a lot but you get used to it, just like you get used to the fact that when you change direction sometimes it can "stick" momentarily.
The only negative, I don't know how long they will last.
From the first days of use, you can hear a GKZZZ GKZZZ sound.
I see bubbles inside the transparent material (there weren't any before), which means that it is coming off or, worse, shattering internally.
Time will tell.
I am 95kg with a 25kg chair

They were used to replace the wheels of an Anda Seat chair. They fit perfectly! The rolling quality is excellent, much better than the original wheels and completely upgrades the experience of this particular chair. Highly recommended. Based on their cost, I should have replaced them earlier.

Excellent quality.
Three comments for anyone interested:

Yes, it's worth it.

The chair is a bit tall and the armrests may hit the desk.

The wheels move very easily on tiles, so if your feet aren't on the floor it might roll slightly. (I often sit cross-legged and notice it sometimes, but it doesn't bother me.)

I put them as a replacement on a gaming chair. They raise the chair a bit compared to the classic plastic wheels, but they roll everywhere like a 4x4