I got my xG3 in the second beta wave this past August and installed in on August 17th. The install went pretty smoothly and I did have an experienced piercer do it, but he had never done an implant like this before.
Video of install is here (sorry for portrait mode)
Pain was about what I expected: worse than my xEM but really not too terrible. It felt like it took forever, although it was under 3 minutes. My hand ached for a couple hours afterwards (especially if I put my arm down below my shoulder) but then felt completely fine with zero pain the next day.
My xEM left me with a huge bruise on my hand, but I had almost none from the xG3. You can see the progression in these photos but it’s pretty boring.
So far I’m quite happy with my magnet. I can hold little screws when I’m working and overall it’s just cool to show off. I have also tried grabbing stronger magnets to to pull on it so it looks like something is trying to burst from my skin, but at this point it hurts a little to do it very often, I’m guessing that might be better when the implant is completely encapsulated?