The ease of use, how intuitive it was for my team members who had never used this before (or any other software). It's one less piece in our workflow which makes things easier overall! I would like more customization options available with different plugins or presets so we could create custom sounds without having too much setup required beforehand but they are working towards improving these features over time as well - great product though!! We're using papaEngine primarily because its simple enough yet powerful at creating realistic sounding environments within games & apps while keeping file sizes small compared against others out there such us Unreal Soundbanks/SoundCloud etc.,.