Did the first knee four years ago. No regrets. Did my exercises at home twice a day. And PT three times, then 2 times per week. Keep up with the PT and find a good one.
You've got this!
I picked up a gently-used Overland a few years ago. It was tough to open when I got it, but after being worked on by Cody Conagher, there are no issues.
Good gun!