Electric, portable routers have been used for nearly 100 years in woodworking. Even before the electric routers we know today woodworkers were attempting to achieve similar results with a variety of hand planes for complicated angles and joinery. As I've read through several blogs and forums it somewhat baffles me to see the question, "What are the advantages and disadvantages of using a router in your projects?". I've wracked my brain trying to justify any disadvantages of router use, and in today's world I honestly can't think of a way to do so. Quite the contrary actually, as electric routers have become an essential tool in every wood working shop.
Electric routers are used in several different ways, all of which aid in a cleaner, stronger and longer lasting product. There are handheld trim routers which are fantastic for breaking edges with round overs and chamfers. We have plunge style routers that are great for joinery such as dove tails and dados. Router tables are regularly utilized in order for accuracy while using a fence for guidance. We even have "smart" routers in the for of CNC machines which open a whole new door to the routing world. Mastering a computer program will allow you to create precise engravings, accurate templates and unmatched designs. Router possibilities are endless, and all give a positive advantage to your projects.
All of this to say, there are no disadvantages to using a router in your woodworking. Actually, I recommend to everyone that is newer to woodworking to obtain a trim router as soon as possible. Whether they are corded or cordless, this is the best way to learn the mechanics of routing because you can feel the routing process. Grab some scrap pieces of wood and test out several varieties of bits to find the look you are aiming for. I can almost guarantee it will ignite ideas in you that will change your woodworking experience.