Ranked in these QuestionsQuestion Ranking
Pros
Pro Fullscreen mode
Has a fullscreen mode.
Pro Emulation support
It has support for emulated games.
Pro Controller support
Supports controller navigation.
Pro Open source
It is released under the MIT license.
Pro Scrapper included
It includes a scrapper that automatically loads the artwork and metadata.
Pro Launcher sync
Epic Games, Steam, Origin, Uplay, Gog - you name it, they have it.
Pro Completely customisable
Most parts of the launcher, from the font to the general feel of it can be customised via themes and extensions.
Pro Customizable but still simple
There are not too many options.
Cons
Con Single platform
It is only available for Windows.
Con Lack of controller support
Does not support Dinput.
Con Grid display
People would like to have more options to customize how the grid is displayed.
Con Not completely stable
Lockups and crashes are possible using Playnite.