Digital Downloads ‑ Filemonk

Tried a bunch of other file-delivery apps and they're all too convoluted, nonsensical, confusing or generally bloated with stuff. Filemonk installed in 2 minutes, emails was easy to setup, integration into store flawless (and didn't mess with my very complicated theme). Emails are already sending out with customers deliveries as I type this review. Use this one. It is *the* one.