Not me, but one of my closest friends had a kidney transplant. His quality of life increased a great deal after the procedure for numerous reasons. Dialysis took a huge toll on his body and he was pretty much fed up with it when he recieved the call. Off the top of my head the most challenging part has been the side effects from the immunosuppressants he has to take. There are also certain physical activities he's had to give up or really dial down (was an avid climber) but he's adapted. Some weight gain and a little hair loss are also things he's learning to manage. If you have any particular questions you'd like to ask him, I can take it to him and get back to you.
I'm glad to hear you've got a good support system around you (really important) You've got this, dude. Keep us posted.