Thank you very much guys!
Generally i had a bunch of problems, but for two i couldn't find a solution...
1. persistent noise on "glossy" surfaces that are close to any source of artificial light (lights/emission mat)
2. very flat images, - constant lack of contrast and rich middle tons
As you probably noticed images are subjected to severe torture in PS :-D, ( biggest part from my ignorance of proper post-processing )
any suggestions are more than welcome