Ah, sorry. I'm not familiar with that one in any depth. I've seen it mentioned, but I believe it is less sophisticated and, for example, doesn't handle raw files. Then again I might be completely wrong as I've not paid much attention.
FWIW I do have an Eye-Fi Pro X2 8GB myself. It works fine, not that I use it often. Just make sure you have the latest firmware in the camera though, because it did cause problems with my 5D3 in the early days and a camera firmware upgrade fixed it.