Originally Posted by katamari201
Depends how they implement it. The G2 was so bad it took five seconds to focus and everything was a blur, even video,because they relied on too low a shutter speed and OIS only helps so much.
You're right, it's no guarantee that it will be fantastic.
However, the Note 3 and S4/5 have been decent, although not fantastic in low light. So if we assume that the sensor/algorithms are at least as good as that on the Note 4 (although they'll most likely be a bit better!) and then throw the OIS on top of that, it should make for a better camera overall.
We'll have to wait and see for some proper reviews and user hands on feedback though!