Jon Mitchell pretty much nails it when explaining what it is that is so great about Path:
Path is not conducive to networking or discovering people. Twitter and Facebook are great for that. Google+ can dump thousands of new people on you without even asking. We don’t need another place to network. What we need is a place for intimacy and trust that is still enhanced by the sharing power of the mobile Web.This is exactly how I feel about it, and why I try to get my closest friends to start using it. It isn’t a place to showcase yourself, dump links to funny videos etc. It is about sharing your life with your closest friends; your thoughts, your memories, the stuff that you feel confident in sharing with your inner circle. This becomes quite obvious when opting to share on Facebook as well: what you just wrote isn’t all that personal, so it’s ok for everyone to see. And this works both ways: you keep your personal stuff in, and you keep the noise out:
You also can’t link to the Web from Path. URLs don’t work. That’s an intentional decision by the Path team, and a bold one. On all the everything-networks, linking to the Web is part of the experience. Google+ may suck at it, Facebook may kidnap your links and keep them inside its walls, and Twitter may butcher your URLs, but, in their weird ways, they let you bring in all the signal and noise of the Web. Path does not.