When you're working with multiple computers, speed and convenience matter. I enjoy using Nitroshare to send files to specific computers because it's dead simple. Another added benefit is that, unlike syncing apps like Dropbox, I'm not forced to setup selective sync or otherwise concern myself with which computer the file will appear on. Network drives and Samba sharing are not appropriate for every situation. With Nitroshare, I simply select the file or directory in question, and send away!