Yes, I had a total knee replacement done on my left knee almost 1 year ago--will be a year on the 9th of this month. I spent 6 weeks in physical therapy going 3 days a week. It was the best thing I did for myself--the surgery I mean. Before I would go to work and have to walk with a stiff left leg cause my knee hurt so bad. Now I can walk all around the hospital where I work. But now my right knee is getting worse and will probably have it done in a year or so.
My surgeon was amazed at how well I got along after surgery as I am a large person--short but wide!! I had no complications at all.
And it makes a difference whether you are having a total replacement or a partial one. The partial is much easier to recover from.