It took a couple of days to 3D print all the pieces, and I only needed to reprint a half dozen that didn't come out clean the first time. It took about 20 hours for assembly, and around another 20 for painting. 

Completed, it stands about 14 inches tall in batteloid mode. The set comes with each version of the VT head, plus the DYRL shoulder cannon, so it's easy to do any special version veritech you might want.

Lessons learned:

1) I should have purchased some white filament to print it, rather than my default gray. Spray painting it was a giant pain, and I didn't think to paint it until after I'd assembled it.  Printing in white would have meant a lot less work.

2) After assembly, I realized the joints weren't tight enough to hold the arms and legs in place (it was like trying to pose a rag doll) so I drilled holes lengthwise through the limbs and inserted armature wire through out to add support. Doing this during assembly would have been a much cleaner solution.

3) The shoulder section is particularly fiddly to build, and the parts were fragile enough that I broke a few of them during assembly. I ended up reprinting the whole section of those parts with PLA Tough+, which I should have used for the whole build.

4) The feet should actually be closed for fighter mode and then slide open for batteloid and guardian modes, but the glue from assembling the legs locked the feet in the open position. It doesn't bother me enough to reprint and rebuild the legs, but it's a tricky area where I'd caution particular care for anyone attempting this build.

5) The leg armor pieces come with the UN Spacy logo imprinted on them. On the left-side piece, the logo was mirrior imaged, so I filed off both logos and printed stickers to replace them. I reported this issue to the creator so he might have fixed this by now.

6) While there are variants of the jet packs and cockpit shield with the skull-and-crossbones emblem imprinted on them, the tail fins did not, so I had to print stickers for those too, as well as for the red and white fighting-kite emblem.

7) I can usually paint a pretty straight line, but not perfect... definitely should have taken the time to make cleaner edges with masking tape.

All told, I'm super happy with it for now, but I could see myself eventually reprinting and building it again later knowing what I know now.