I purchased this for a hardcore challenge server and it worked exactly as advertised. The setup was incredibly simple compared to the multi-server Velocity setup I was originally planning.
While testing, I noticed a small usability issue where players had to manually click "Spectate World" after dying during the world reset countdown. I reported it with screenshots and the developer responded almost immediately. An update fixing the issue was released incredibly quickly, making the experience completely seamless.
The plugin is lightweight, easy to configure, looks polished in-game, and does exactly what it promises. The support alone deserves 5 stars.
Highly recommended for anyone looking to run YouTube-style hardcore challenge servers with automatic world resets.