You will find Miter Saws in every professional and hobbyist's woodshop. There are a variety of makes and models to choose from such as Makita, King, Bosch, Dewalt and more. Miter saws are especially great for cutting cabinet trim and crown moulding. These days miter saws have many different features and variations so it's important to choose the right model for the work you'll be doing.
One big advantage to a miter saw is, the stock remains stationary while the cutting head moves, making it easier and safer to crosscut large pieces rather than using your table saw.
When purchasing a miter saw, you need to consider whether to buy fixed or sliding saw. Which is best depends what you will be using it for?