Snap chat can be good for a lot of things: restarts, easy nudes (with save app), and establishing value to name a few. I am in college and most all girls use snap chat so I am almost forced to use it. I have successfully sent some restarts via snap chat and the reason I think this works so well is because of inferred privacy and the fact that it will be gone soon which I believe adds comfort, but maybe that is just me. Not sure why but my success rate with restart snap chats vs text restarts is much greater.
Additionally, girls will send nudes over snap chat fairly easy. I usually send snaps with gradually less clothing in a playful manner, or sexual depending on history, and I get the same response provided she is at home. My friend even has pictures saved with cookie cutter scripts for getting nudes he just sends them in succession and usually always gets nudes back. Then saves them
so make sure you have a snapchat hack app so you can implement this properly as others have mentioned.
So, this is why I love snap chat, it also gives you the opportunity, like all social networks, to put your best alpha foot forward. So if I post anything to my story it is funny or uplifting to my value in some way. Most girls look at all the snap chat stories when they are bored in class so it is easy to convey your message. I usually always add a girl on snap chat after I get her number and we have hung out once, so they have the privilege of seeing me again.
As a side note from my experience setting up dates/meeting up with a girl via snap chat is not a good idea usually. I try to avoid questions via snap chat my response rate is awful for some random reason. The only time I do meet up via snapchat is for parties I have a good amount of girls that I turn up with so if I find a good party around campus I snap chat them with an address. Remember to have good lighting on what you want them to look at and show off your manly features jaw line, posture, convey confidence ect.