I've written a review of Zorin OS 12 beta 64-bit version, a Ubuntu-based distribution with a customized Gnome 3 desktop, tested on a laptop with UEFI, Secure Boot, GPT, 16 partitions, and a multi-boot setup with Linux and Windows, covering live session, installation, and post-install use, including look & feel, networking - Wireless, Bluetooth, Samba printing and sharing, multimedia support - MP3 and HD video, smartphone support - iPhone, Ubuntu Phone and Windows Phone, partitioning, software management and updates, applications, webcam, resource utilization, performance, responsiveness, hardware compatibility, suspend & resume, battery usage, many problems and glitches like display issues, Skype microphone issues, Rhythmbox regressions, broken search, and more. Enjoy.