RANDOM: Have you (or someone close to you) had a knee replacement? If yes, how was it and how is it? Recovery?

*Don’t read anything into this question — I like posting random questions from time to time and I read that Pres Bush 43 had a partial knee replacement…so I wondered if you had, and how it worked out for you? ** (As an aside, my Mother had two knee replacements in the 1990’s while in her 80’s and it was great for her once she got through all the physical therapy.)