The repack is usually based on version 1.67.2.024037 , which is widely considered the most stable "non-Origin" version of the game.

Through compression, the download size is significantly smaller than the ~30GB+ of a standard "installed" collection, though it still requires substantial space once unpacked. System Requirements

It typically comes bundled with the DLC Toggler/Uninstaller to manage which packs are active and performance-enhancing mods like NRaas Overwatch and ErrorTrap to help stabilize the game’s infamously heavy engine. Key Features and Benefits