As its name suggests, it fits in perfectly in a Gnome environment. It supports different user profiles, tabs, text re-sizing, transparent background, and a high degree of customization. Let's start with the 'classical' terminals, and for Gnome, Gnome-terminal is as classical as it gets. There are a lot of them out there, and most are completely worthy of your attention. If you deem a terminal application not cited here worthy, please let us know in the comments. I will try to give you a well furnished list of good terminal emulators on Linux, from the classics, to the most exotic, but always efficient and original.
But the choice of your terminal emulator is important since it can be the single application that you use the most.
By accessing the shell, a user can easily perform tasks that would be impossible, or too repetitive to perform from a graphical environment. Any power user of Linux would agree on that. A good terminal emulator is a sufficient reason to choose Linux over Windows or Mac.