I got there two days this quick circle for my LG G3 and I am generally satisfied. The effect of the widgets in the round window is very nice. You can even add in visiting the LG SmartWorld. I tried two integration modes: with and without the back cover of G3. I preferred kept the back cover of G3 and put the entire phone in the hull. Indeed, I felt a slight play by removing the back cover of the phone. The White Case is indeed a bit bright, but for the moment nobody made fun of me.
ps: I'll be installing a protective film to fully protect the phone. Especially at the window that is not protected.