MMJR2 often retains the classic Dolphin user interface structure, which many users prefer over the newer UI changes implemented in the official app (like the sliding drawer menus). It offers a "classic" feel that makes transitioning from PC Dolphin to Android much smoother.
Because MMJR2 is a fan-made fork, it is not on the Google Play Store. You must sideload it. Be cautious of fake "MMJR2" websites that contain malware. As of 2025, the safest place is the official GitHub repository or the Retro Gaming Corps archive.
A modernized fork using Dolphin’s current codebase (post-5.0-20000) with MMJR2’s synchronization relaxation could achieve both performance and stability.