Fotograafdigi, Padeye,
I just install and made preliminary tests with MeatImage (the free version). Did you tried it yet? My first impression is quite good. Lot of control you can adjust, and you can select a portion of the pic to make noise analysis to built the correction pattern. Sharpness is highly customizable too. Have a partial preview (quick) , final processing is slow ( I guess it’s normal) but you can queue jobs.
IMO, worth a try , the free version is not time limited, and very little limited.
http://www.neatimage.com/