Recovery is variable, but generally it's at least a couple of months before you are back to near 100%. Often much longer, but rarely much shorter. In my experience, organized cardiac rehab is extremely helpful in speeding the recovery. Regardless of the valve you choose, you should end up with NO restrictions at all on exercise or activity after a specified recovery period during which there are some restrictions. My surgeon was very clear on that, and I had a valve and aorta graft. Some surgeons apparently are not that confident and may indicate some ongoing limitations. Unless there is some permanent cardiac damage or you suffer from some other problems, you should expect to be totally free, whether you get a mechanical or biologic valve. I was a marathon runner in my youth, and I have recently resumed running again after a 25 year hiatus. I was anemic and had reduced exercise tolerance after surgery for about 3-4 months, and now at 6 months I'm ready to rock and roll.
Anyway, good luck with making your "choice" both of your surgeon and which valve, etc. I wish I could help you but I don't know Shands or that surgeon, other than Shands has a reputation as a top medical center.
Bill