I'm pretty mad at Polyend for preloading samples that are licensed only for non-commercial use with attribution. I'm used to assuming whatever comes with the gear is safe to use in my music, but they don't even tell you who to attribute the samples to so I don't know how it would even be possible to comply with the license terms. I asked their support about it years ago and never even got a response.

Edit: I suppose I should actually comment on the device itself - it's great for coming up with rhythmic ideas and such but a really clunky workflow for sound design and mixing.