Monte, I'm in for double ankle and hip replacement (knee 2x, 90's and 00's with screws and 3 torn ligaments. Last ankle was done 12/21. 35 yrs of basketball, high school college and open leagues till prob 45. Last 5 yrs of playing were with too much weight 6'5" 260 and whole body broke down. At the end of my ankles lives I couldn't walk without sharp pain. Went to my sons wedding before the ankles and hips were done and had to get cortisone in both ankles, one hip and 1 knee to get through the week.
Now the good news, recovery is as advertised, 6 weeks before boot(see if u can have a split cast put on instead of a fixed one) then light walking with boot, start rehab and in 4-6 months u should be good to travel and do whatever. I have a friend who had one as well and snow ski's lightly in the winter. I just swim and ride a bike now.
As for a doctor, I spoke with a guy at HSS who did my friends, a guy at Duke and then was introduced to a guy in sfl who trained at john's hopkins and is with a world-renowned group in WPB. I ended up using him for 2 reasons, didn't have to travel and IMO was extremely capable. I would try to find a guy who has been doing tar exclusively for at least 7,8 years and go from there. As for the actual devices, all the new ones seem pretty similar to me. I did come to the quick realization that all of the doc's are recommending the one they are monetarily affiliated with, ie doing research, field testing for compensation. Last yr the guy says abc device, this yr it's zyz.
Finally, my ankles do not feel as if I'm a 25 yr old again but I can walk with no pain. I get some soreness and stiffness in them but I can live with that. My mother actually had hers replaced about 8 or 10 yrs ago and says she feels nothing but normal in the foot but she's a small light woman, not 6'5" 310 now as I am.
Good luck and let me know if you have any questions.