Why not enjoying the best of both worlds? I am using FastStone to manage all my photos (including raw), to create slide shows to export and rename photos . For the editing part I using the developer edition of Gimp 2.9.3. FastStone provides the edit with external program function which makes my work flow quite seamless. I got my Gimp distribution from partha.com, which works and does include the Photo Flow raw plugin. That combination give me the ultimate control, using layers, 32 bit precision, curves and all the tools I could ever need. I moved over from CS4 several years ago and I am quite happy in the FastStone / Gimp universe.
Did you download the regular 2.9.3 Experimental GIMP, or the Color Patched Experimental?
http://partha.com/
I downloaded a 2.9.3 build dated December 12 2015, and had the impression it was unfinished, so I went back to using 2.8 on Linux, although 2.8 lacks 32-bit operations.
In this thread at the following link -- Patco suggested the below listed version for download and use.
http://www.dpreview.com/forums/post/57701251
The current stable release of GIMP is 2.8.16 (2015-11-21)
I DL and installed it and have Down Loaded version 2.8 pdf manual from:
http://gimp.linux.it/www/meta/gimp-en.pdf also recommended by Patco.
However, The Help (for Local individual Computer) is not functioning. So far, I have not found proper details for installing the Help System which evidently uses the PDF Manual (User Guide) as part of the "Local" Help System.
Can anyone help with advice and details of how to get this HELP part of Gimp working properly.
I have opened only one image in Gimp starting to get acquainted with the interface and Menu Details. With this limited access, I did not see the option for selecting to save an adjusted file using Save As for either file type -- Name.JPG --OR-- Name.TIF . Hopefully, both are available for use especially when saving a file (with layers) as a .TIF.