Respectfully, that's a long 10 seconds - unless you talk much more quickly than me 
To be fair 10 seconds is not a great opportunity to convince someone of the power of ODK (no disrespect @danbjoseph) - I wouldn't, for example, try to do it on twitter!
But if you'd asked me to do that (and I'm glad I got off lightly!), I would suggest:
It's easy, quick and flexible; you can ditch paper (oh so good in our Scottish climate!) and save time overall (even taking into account the learning curve at first). And it's free at the point of use (also good in a Scottish climate!) needing no special equipment to get set up.
I'd point them towards the showcase too, especially @mathieubossaert's relevant post: ODK to collect species and habitats localities, as pressure and threats to ecosystems