I suspect a lot of the bad reviews of this App come from the fact that you have to follow the instructions here. You have to set up each device to send or receive before they will locate each other. I had to email tech support to figure that out. But, after I figured out how to do it, the app worked great. I havent had any of the problems listed, and Ive transferred numerous contacts and photos between my iPhone and iPad. It is a little slow on large files, but I suspect thats largely a Bluetooth issue generally. I havent had any failed or incomplete transfers.
Caleb Powers about Bluetooth Communicator - All in One Share