Hi John,
The big time sink in using the L16, for me, has been getting familiar enough with the camera in order to minimize how much modification to the capture is needed.
In the workflow I've adopted, I use Lumen to import all the files to my computer, do a quick look through there, and then output the files as JPEG + DNG for processing in Lightroom. I do most of my image rendering in Lightroom on the DNG files, sometimes the DNGs and/or JPEGs straight out of Lumen are right on the money and I need to very little else.
In LR, then, I identify which specific images might benefit from further work in Lumen, such as narrowing the focus zone or whatever. Usually this amounts to two or three out of a dozen exposures. At that point, I return to Lumen and make the adjustments, re-output to JPEG+DNG, and then do the finishing work in Lightroom.
Using Lumen is a bit of a burden sometimes, but overall it's proving to be fairly easy to minimize how much work I need to do in it since I've developed a good feel for how to shoot with the L16 now. The most common thing I need it for is to make the focus zone a bit shallower .. For instance, in the photo of myself and my cousin above, I used this to gently blur the background a little bit, since the default output is at nominally f/15.
G