I am not far in, but I do wanna say I love First Person. It changes the game so much, especially being able to see sims' faces so much closer. Nancy Landgraab's eyes judging my peon sim was so visceral. Left me with a dazed moodlet. I really hope that FPM gets tweaking done by the devs, as it has so much potential for gameplay styles and maybe even challenges, and if it could get worked to be more comfortable for those susceptible to motion sickness that would be even better. The more the merrier!
(I am sad that your sim still isn't reflected in mirrors when taking pictures, but that's small potatoes. Can still do fun mirror screenshots while in FPM.)
https://i.imgur.com/SSSjRJQ.png