I waited until the price dropped to $199 and then I bought one. I have been playing with it for 2 weeks now and at this point I say its not worth the money. Here is a simple low light test I did to compare it to the Hero 3 Black

GoPro Hero 3 Black vs Hero 4 Session - Low Light Test - YouTube

I should say its not worth the money if you have ANY of the Hero 3 models. I would compare the Session to a Hero 3 White. However, I would still choose the White over the Session due to removable batteries but the image quality is essentially the same.

Wow, thanks for the review. Have you found others that have the same problem? I suppose this is why GoPro stock has sputtered along this year.