Yakuake is yet another impressive terminal emulator which can replace Guake depending on what you like. It is based on KDE’s Konsole technologies which is also a powerful terminal emulator that comes loaded by default with KDE Desktop.
Yakuake is one of the most popular drop-down terminals because it’s smooth, configurable, skinnable, and has a tabbed interface. The only thing you might not like about it is the fact that it’s based on KDE Konsole.