G15 w/ Eye-Fi Card...who's using one?

I bought an Eye-Fi card for my G-15 (16GB Pro). I'm using it on my Mac w/ OS10.8.2

I have to say, it's a bit hit or miss. The Eye-Fi helper seems to lock up a lot. Sometimes the camera will start sending the images, and just get stuck in send mode without the computer receiving them. This is with the camera and computer right next to the hotspot.

Is anyone successfully using this combo? Perhaps some are having better luck on a PC?

Thanks,