I reviewed it for the 2017.07 eZine. I also like virtual instruments for B3 emulation, but sometimes samples are faster to deal with. The main feature of the DSF package is that it makes really good use of the Rapture Pro/Session Instrument page controls, and the controls aren't the same for all presets. Having done a lot of Rapture Pro programs, I know how much work it takes to create useful Instrument page controls. DSF has done a good job of making the package Rapture-centric.
If the B3 is a big part of your sound, you'll probably want to go with a virtual instrument that you program any way you want. If you need to add B3 sounds on occasion, for $39.99 the DSF package gives the B3's "greatest hits." The last paragraph in the review was
"Although I don’t use a lot of B3 organ sounds in my own music, I spent enough years on the road and in studios to have 'that' sound burned into my brain. As far as I’m concerned, the B3 Tone Wheel Organ Pack provides everything I’ll need for projects that want a B3 sound."