That's what I have and have used it since yesterday, I don't regret it that's for sure. Due to work I couldn't use it today like I planned, but will next weekend. My main goal is for portraits and having a bigger screen to proof on. I also have the camera connection kit for iPad from apple, but like this eye-fi setup a little better. I have some other reasons like when shooting sports my wife ask to look at the pictures and now she can see them as I shoot them, as well as I prefer the bigger screen and knowing I got a good shot while in the field and not finding something was off after I get home.
One thing is if you are shooting fast moving sports you might notice a lag in the transfer, but it will catch up pretty quick. It did not in no way slow my camera down that I found. I ran a test of 10 shots real quick , just held the shutter button down pointing at my son, and it took a few seconds to catch up but nothing that I would be worried about.