Here’s some guitar recordings made via Pisound by @loopmasta https://soundcloud.com/loopmasta/modep-on-pisound
Here it’s in a lego box doing some stereo audio effects and MIDI processing: https://www.facebook.com/myskinnerbox/videos/10156365918758407/
Here’s it’s used to add effects to trumpet sounds in tracks by @giorgiodistante: https://soundcloud.com/giorgio-distante/ (More info on the setup: Showcase Your Setup or Pisound in the Wild)
In terms of technical aspects, Pisound’s audio characteristics for the different sampling rates are available in the graphs on https://blokas.io/pisound/docs/Audio/