I wouldn't say the results are "horrible", but it does feel like this new version is a lot more "heavy handed", we could say, with some of the detail processing. A lot more often I am seeing basically oversharpening artifacts whenever there are clusters of small detail. Green an Pink pixels popping up etc.
The problem seems to be that somehow the noise reduction goes hand in hand with the sharpening - so even on LOW sharpening if we use HIGH noise reduction it also oversharpens the result. Will need to do some more research.
And I agree that it is unfortunate there is no way to compare with the previous version.