Gullfoss gets 5 Stars from Bonedo.de
"Despite the relatively simple approach and the few adjustment options - Gullfoss does what it should and damn fast. In no time, errors in the signal are eliminated and at the same time pimped out, precisely because the processing is constantly being adapted. The few parameters convince in more than 90% of the cases, so that rarely one would have to intervene more deeply in the "secret process". If something is missing, that is done much faster with other plugins anyway. 5 Stars!"