I've never had a knee replacement but I've recovered/rehabbed a metric ton of them (both traditional and robotic). The robotic approach requires a smaller incision with less connective tissue disruption. The initial healing phase is a bit shorter as well. Where the robotic approach really shines is in the precision with which your surgeon will be able to perform the surgery. Great surgeons are usually pretty precise, but the robot is still more precise. Whatever path you choose, don't skimp on your research for WHO is doing the surgery (this is priority 1A for having a good outcome). Andrews Sports Medicine has some of the best Orthos in the country. Dr.s Cain, Emblom, and Dugas are the ones I'd recommend. The follow up care with Andrews is outstanding. If you don't like them, I'd suggest Dr. Mark Elkus as a solid second choice.

Priority 1B for a good outcome: As others have said, DO YOUR PT! Better than 90% of patients that I've seen go through a revision surgery didn't take the physical therapy seriously. It's going to hurt pretty much every time you do it, but you have to suck it up and do the exercise if you want a quality outcome.