I have used v8 and now v9, which came out about 2 or 3 months ago. It is a full featured race converter and works particularly well with Fujifilm cameras. It is a bit quirky and does not have the more polished user interface and experience of Capture One, for example. It does a lot of behind the scenes automatic analysis of each image to apply various levels of demosaic sharpening and noise reduction, etc. There is a series of YouTube videos made by a guy named Mark Rouleau that goes over most of the basic controls and there is a small Facebook group that is very responsive to questions, bug discussions, etc.
I find that it does struggle with Fujifilm files that are underexposed by more than a couple of stops, primarily in that the color desaturated significantly as a result of pushing the exposure in post (or, as it is often called - pushing the ISO in post, for isoless sensors).
v9 adds some tools but start with v8 and see how you like it.
Kirk