Hi Frank,
My bet now is PowerBI, it works, it's powerful and with the add-on that you can get the resulting dashboards in cell phones.
With the right commercial approach with the customer, you can even sell it as an extra service and charge for that.
Now, what really matters, do I have it already on the field?
No, but the reason is not due technical difficulties to implement it, which is pretty straightforword and now that you brought this up, I felt a compolsory motivation to reopen that project.
I'll let you know more details whenever I'll get back to it.
Good luck