No "Communication" needed with printer, but a 5 star rating due to the other results. Product printed exactly as ordered. A bit of cleanup necessary for material left from printing (to be expected).
Fits nicely on my Osmo Pocket and on the GoPro mount it's supposed to fit.
The fit for the lighted areas it covers is perfect (kudos to the 3D file), showing the lights through the cutouts nicely. Where it meets the touch-screen I was concerned that the ability to sweep up from the bottom might be hindered somewhat, but it wasn't at all. The phone adapter plug slides in as it is meant to with the item in place. This file was supposed to be the "heavy duty" option; a thicker version, and doesn't seem to be, but that wouldn't be the printer's fault, if indeed that's the case, and it seems that it will be sturdy enough if I'm not rough on it.
Shipping was fast. Overall, I'm very satisfied with my order. Thanks!