The default terminal on OS X isn’t really that great. It doesn’t let me reconfigure keybindings to my liking. There are two other terminal choices for OS X: Hyper and iTerm 2. When it comes to being customizable, I think Hyper wins. However, there are some really annoying things about it:
It is an Electron app, which means it is a memory hog. You cannot drag and manipulate tabs the way you can with native apps.