Looks really good. How much time it took from you, to do this work?
3 developers, one backend (me) and 2 frontend (my brothers), both of us having full time jobs.
We worked on weekends or after work in our free time (2 hours a day). Development started from June 2015.
Also the frontend is completely open source: https://github.com/SavandBros/gonevis-dash