Well, it definitely was not 15 minutes. It took us about an hour and a half to make it to the top, so we were all starving, dehydrated, and I was wearing jeans so I looked like I had just gotten out of the shower.
We finally made it to the top, which, I have to admit, was totally worth it. Santiago isn't the most gorgeous city from an overhead view, but it was one of the few places I've gotten a good view of the Andes because the city is normally so smoggy. Also, at the very peak of Cerro San Cristobal is a huge statue of Virgin Mary, and the idea is that she looks out over Santiago so she can watch over the city and answer people's prayers. So, all in all, I think I found my new favorite part of Santiago, and if you ever come here, it is totally a must-see:)