Ok. So i think i saw this person advertise her tours in craigslist months and months ago (back when I still read craigslist) but, man, she hits it dead on:
As tours are mostly sold word of mouth the “are you good enough to take my tour” attitude has MAJOR appeal. Having read her blog for only 30 seconds, never communicated with her or heard anything about her, let me highly recommend the service she provides (if only to see what service she provides). It’s the only Buenos Aires tour I’d take, which I won’t.