I made great use of S3D, I did donate 15 or 20€ sometime in 2008 I think. Disappointed almost nobody bothered, without this tool the amount of "game changing" mods wouldn't even near 1/10th of what it is today, every mod user should consider it, not just S3D users.
Yet people rush to shell 50$/50€/28£ for some unfinished crippleware with gimmicky modding tools that lack crucial functionality. When people realize that they'll have to shell $12.500 to have a real modding tool for SH5 maybe they'll understand the gift that S3D is