i've been a photo editor, and photoshop instructor for over 20 years, and i too am not 'thrilled' with this camera. the output files are overly 'hard'. too much processing; too much internal sharpening and contrast applied. i'd like a less processed file that i can work with. as is, the shots are loaded with hard edges and artifacts. and yeah, lots of digital noise on dimly lit scenes.
i'll play around with it more (i've only had the camera for one day! lol), and maybe i can adjust the internal settings....or maybe there's another 'camera' app out there in Google Play that is better. time will tell.