Finally, a Linux panel that doesn't look like it's from 2005.
I've been using aaPanel for about a year now. Hands down, this is the best User Interface (UI) in the free panel market. It makes managing a VPS feel like using a modern SaaS app—the file manager and code editor are fantastic, and the "one-click" install for stacks (LAMP/LNMP) actually works as advertised. It saves me so much time compared to configuring everything via SSH. However, I can't give it 5 stars due to security concerns. The track record with vulnerabilities (like the recent RCE issues) and the lack of transparency regarding the software "phoning home" makes me hesitant to use this for mission-critical client sites or enterprise work.