Sorry to bump such an old thread. The Pie update released for my S9+, EE UK has turned this camera around. I was having the same pain as so many others in this thread. But now it's the leap ahead of my S7 I'd hoped for.
Of note to editors. The RAW files look poor on first glance, with as much noise and softness as previous. The built in editing features can't bring the RAW up to the standard of the corresponding jpeg it produces for some reason. However, if you share the RAW file to Lightroom (I use the free version) it automatically runs an excellent algorithm on load up that works absolute magic to give you a very workable base image. I haven't managed to get Photoshop to perform the same witchcraft, nor snapseed. But Lightroom will do for me.
Also, as just a point and shoot for jpegs it's a massive jump on from where it was. Edges have... edges!! Colour grading is beautiful and accurate to RL. I really like it.
All in all, I've found it a massive jump. Finally got the camera I paid for. My Instagram account can live again!!