This be a long, thorough review of Kubuntu 18.10 Cosmic Cuttlefish, tested in a multi-boot setup with Windows and Linux on a laptop with UEFI, GPT and Intel graphics, covering live session, installation and post-install use and tweaks, including look & feel, networking - Wireless, Bluetooth, Samba sharing, printing, smartphone support - Android and Windows Phone, multimedia - HD video and MP3 playback, partitioning, slideshow, package management and updates, applications, hardware support, resources, battery life, energy, customization, various bugs, other observations, and more. Enjoy.