Fieldbook co-founder here, thought I would weigh in. I agree with Howie that he doesn't spend much time using Fieldbook, since we already have many of the features he mentioned.

IMHO Fieldbook has the best user experience anywhere for building and working with a real relational data model, including many-to-many relationships, sophisticated queries, and aggregated reports. We've done a ton of iteration with real users and hundreds of usability tests to make these features natural and intuitive.

Fieldbook customers use it on a daily basis for their core business information and processes, and they're very happy. Read our reviews here: http://www.capterra.com/database-management-software/spotlig...

But there's no need to be gripped by indecision! Just try them both, it's free. That will tell you which one works best for you. Message us in-app if you have any questions, we're happy to help you get set up!