I just donated three weeks ago and it's gone very smoothly for me and my recipient. I was out of the hospital the next day and I could have gone back to work after 10 days but I opted to take another week off. He is also doing great after 3 weeks.
I think I am unusual, though, it seems like most people are in the hospital 2-4 days and take a bit longer to feel back to normal.
The first few days were hard, I had some pain and soreness, I was tired and napped a lot. Oddly enough, the worst part for me was that I had withdrawal symptoms from the scopolamine patch they used to keep me from getting nauseated from the anesthesia. Scopolamine helps with motion sickness, and I guess that in some people, when you take it off you get...motion sickness! So I felt like I was deep sea fishing for 2 straight days and then it went away.
Now, other than the incision being sore and a numb leg (anyone else ever get the numb leg?) I feel pretty normal. I have been reassured that the feeling in my leg will return, that the nerve was somehow compressed or something during surgery.
I did a lot of research before I donated and there's lots of great information on the internet if you search. Many donors have done blogs that give their account of the process and that was enormously helpful to me. 90% of what I could find was very positive and the risks were outlined as being minimal. I know there are concerns that the long-term health of donors has not been adequately researched and while that was a bit alarming, when I weighed the risks and benefits I knew exactly what the right thing to do was.
Good luck in making your decision.