I've been amazed at how good MUREDenoise is for linear images...it's my first step after integration. It took me a while to get the camera parameters correct, but once dialled in, this process is like magic! Not only is it highly effective in maintaining faint structure, but it's very easy to use (compared to TGVDenoise, etc.)
But being the sceptic that I am (there's no free lunch!), I wonder if there's some down-stream downside that I'm missing. I think I occasionally see a trace of a kind of "checker board" pattern in later non-linear stages, but I can't be sure if that's just insufficient integration time, or some other artifact.
What are other people experiencing?