Brad,Definitely eXposure, but remember these were DNG conversions. So Adobe Lightroom (not exactly known for its out-of-the-box color capability) did the demosaicing.
Whoever was messing up the color (and I honestly don't know who's issue it was), the color correction required was non-trivial.
But even the colors from eXposure in the green-yellow area were not right; while adjusting the color wasn't hard (just time-consuming), the whole 'unfinished file' from the back was really the problem. It was incredibly time-consuming to deal with large numbers of images (due to crashes), multiple folders (since only one can be selected at a time).
The post-shoot workflow was one of my top issues with the platform--it was certainly doable, but could have been so much less time-consuming--that is what frustrated me, personally.
The good news is that this issue (software) was very fixable, and subsequent backs like the eSprit 65 were beginning to deliver finished .DNGs. This is why I say that a bit more time to mature would have really helped the platform.
-Brad
I asked since I only have used exposure and not Brumbär and havent felt a problem in the green/yellow area - but I have not done any comparisons /measurements with color charts-just say what I see/like.
I also found that the best thing is to use exposure not only for converting the raw files to dng but also for converting the dng to tif/jpg. I tried c1 and adobe but at least the standard dng profiles provide by those didnt work that great for me, plus some moire-problems appeared.