I have tried it. In the default configuration, it tries to upload all photos online whenever it finds itself in the known WiFi network. I didn't like this.
Direct transfer to other devices is possible, but the configuration UI is horrible. I spent half a day to configure it. Did I tell it doesn't work in Linux? Bottom line: I managed to be able to browse the contents of the card from the Windows PC, and much slower than if I inserted it in the card reader.
On the go, EyeFi is almost useless. The best configuration that worked for me (without synchronizing everything, but uploading only selected shots and only to the phone) was with phone providing a WiFi hotspot. And it eats the battery pretty fast. WiFi connection attempts take forever. I had to prevent the camera from sleeping too. Transfering huge DSLR files to the phone was always an overkill.
On the scale of 1 to 10, I'd give EyeFi usability a solid 3. It kind of works, but it didn't solve my problem.
Worst of all, some files were not saved properly (they remained 0 bytes). It happened at random, but regularly. Afterall, I retired the EyeFi card and switched back to normal SD cards which are faster and much more reliable.
Direct transfer to other devices is possible, but the configuration UI is horrible. I spent half a day to configure it. Did I tell it doesn't work in Linux? Bottom line: I managed to be able to browse the contents of the card from the Windows PC, and much slower than if I inserted it in the card reader.
On the go, EyeFi is almost useless. The best configuration that worked for me (without synchronizing everything, but uploading only selected shots and only to the phone) was with phone providing a WiFi hotspot. And it eats the battery pretty fast. WiFi connection attempts take forever. I had to prevent the camera from sleeping too. Transfering huge DSLR files to the phone was always an overkill.
On the scale of 1 to 10, I'd give EyeFi usability a solid 3. It kind of works, but it didn't solve my problem.
Worst of all, some files were not saved properly (they remained 0 bytes). It happened at random, but regularly. Afterall, I retired the EyeFi card and switched back to normal SD cards which are faster and much more reliable.