I owned two of the SilkyPix Developer Studio applications back when they were one of the few apps that could handle Fuji S5 Pro images. SilkyPix had some very unusual raw developing "looks", and some unsuaul, verbal descriptions on how to adjust images like,literally, "a little more contrast", and "a little less saturation", as well as other weird, Japanese-based ways of describing image characteristics.
For a time, I was shooting my Canon and Nikon 5D and D2x cameras in raw mode, and then processing everything in automatic batch captures using Canon DPP, Nikon Capture 4.x, Adobe Camera Raw, and SilkyPix 2.x, and it was very enlightening to see that on some shots, one of the three unique raw converters would often make much better JPEG conversions, on the whole, than the other three. I would shoot an entire day, then process EVERYTHING in EACH of the applicable raw converters, and review the results. Canon DPP only developed Canon, and Nikon only did Nikon NEFs, so despite four converters, it was always a three-horse race. SilkyPix was a bit non-intutive to me in terms of interface, but I was always impressed by how complete its looks were. It was a pretty interesting way to approach raw file editing. It is often badmouthed by people who like the "Adobe Way", and I think that's unfair. It can do some very beautiful image conversions.