It gives you just enough context preview around your search term to judge if the PDF is useful or not. Currently using with 10k+ research papers and very happy with it.
It seems that unlike Firefox or Ubuntu's mobile efforts, they are self-aware of their niche status and are focused on expanding with that instead of aiming for mass-market adoption.
TTIP is probably dead as well:
http://www.reuters.com/article/us-usa-election-eu-trade-idUS...
Only problem with that is that CETA is still on it's way, so there is still a possibility that the American corporations get what they wanted to have with TTIP.
With Trump wanting to end NAFTA, and CETA having no ISDS but a real court, and Canada being a lot more liberal, I actually don't see much of a threat in CETA.