I let myself go and bought yet another Upright bass library. Did I need it? No. Did I want it? Yeah.
when I first tried it with MIDI files I was confronted with unwanted slaps, slides, palm knocks. Thing is, the library plays two octaves above some Upright bass libraries, like Artvista Bass. After correcting the MIDI settings (not in Kontakt, cause that don't work as expected, but in my DAW) this opened up a wonderfully detailed and "dirty" bass. It sounds sooo wonderfully warm and aggressive at the same time.
Another minor thing is that I found the velocity somewhat too compressed. Since you can easily alter that inside Kontakt without any scripting, it doesn't bother me too much.
I think the maker mentions all the musical genres this bass could accommodate and goes to great lengths to avoid the jazz-word, for jazz music this is a super bass. Especially for small band settings. It's not a discrete, electric bass-like Double Bass, but a whispering, growling, singing, humming and sometimes shouting gentle beast of a bass.
Maybe I am naive, but, the idea that the library was recorded through the hands of a real musician, explains, imo, the surprising and exciting richness and variety of the sounds. Subtle changes in playing position, in pressure on the fret(less)board, in velocity, in the way the fingers play the strings...
5 stars is never merited, there are flaws in every library, but this is a wonderful surprise goodie that shoudn't go unnoticed.