Hi. There is almost best features in this smartphone.I have S6 for 10 months. So far so good. No problems at all. Works very well. Sometimeshe gets more hot but its not always.
In camera it was superb. In daylight was very good. At night is not to good but he fights hard against the others.
One of best points its time charging. Arround 1h20 minutes its very good. The battery was good enought for me. Could be better, of course.
The main problems could be no water resistance and more resistance to accidental falls. The fact of no micro Sd slot is not a big problem. If you change your stuff like photos and movies to pc its perfect. For me, 32gb is more than enought.
And, it was a beatiful phone.
After this my next smartphone is going to be a Sony device. The brand cannot have the reputacion of Samsung, but they have a very strong personality and that is more important for me.