Just an idea or two, btw. Glio could make a video, like the 'about' page one, for each city, showing people interacting with the city you're rolling out in. With 4G being installed, at least in the World Cup cities, it will be a boon for your service.

Another suggestion, in case it's not already a feature of Glio, is to implement ReclameAqui's company response ability (Resposta da Empresa/Reclamações Atendidas), at least privately so a company can respond to negative reviews and invite the user to come again to try them out and perhaps change their mind/review.