Hi @ellerbracke! I had a TKR 6 months ago. I would say that I noticed a difference in the stability at about 4 months and it did not feel like a "metal knee" anymore. I still have a place on the knee where I have a numb sensation. I have heard that it can take up to a year for that to get better and there is a chance it may be permanent. It feels weird, but really does not bother me that much anymore. Kneeling is still an issue.It is not comfortable, but not painful. On days when the weather is rainy and or really cold, my knee gets stiff. Again, not painful, just moves slower going up and down the stairs than I would like. I feel like I could use a shot of WD40 sometimes. 🙂 I have to have my other knee done and I can tell the difference between the two. The TKR was worth it and I feel much steadier walking around.