Jerry - I've used PhotoLab and its predecessor Optics Pro for over 10 years.
The Prime noise reduction is excellent and that is primarily the only reason I use this software. So far as I can remember, the more expensive Elite version has this functionality, while the Essential version does not. It also has excellent lens profile correction capabilities, but these are not used at all for the mFT cameras like the GX8.
I find it is a very good raw convertor, but the editing functionality is a bit cumbersome and convoluted and is targeted to the advanced user. I would never print directly from it (but then I would never print directly from any raw convertor / parametric editor); it does not do local adjustments, which I find are essential to create a good print. It does allow printer / paper profiles, so that will allow you to download the Costco Profiles from DryCreek Photo and use them. Costco tends to use the Fuji Frontier Chromogenic printers with Fuji Crystal Archive paper. The also use the large Epson ink jet photo printers for large prints.
https://www.drycreekphoto.com/icc/Pr...rofiles.htm#CT
I would not recommend this software for what you are trying to do.