We will be doing a big write up on this soon for our blog and Maps Made Easy guide pages.
The Vision + has a focal length of 5mm as read from the EXIF tags. With a resolution of 4384×3288 and a pixel size of 2.015 um, each spot would be 106m x 79m with .95 inch/pixel ground resolution. That will give you a pretty good resolution map as long as you get plenty of overlap.
Play with our Point Estimator to get an idea of what all these numbers mean and how they affect your ground coverage.