I have a Nexus 5 and I have to use Android File Transfert to copy/check my files.
It's working but it's not enough for me.
For example, if I want to see my picture, there is only a list view, no thumbnail. Also, if I want to upload a picture on a website, my phone doesn't shows up in Finder so, first I have to copy my file to my SSD then I can see it.
Maybe it's possible to use Samba or anything else to make my Android device shows up directly in Finder ?
curlftpfs
, but it seems not to be available for OS X. But anyway, you got the idea.