While paint brushes are good for going around corners and tricky details like mains sockets and ceiling roses, if you want a professional finish on your paint jobs, rollers are by far the most efficient tool for the task.
They allow you to impart a thin layer of paint in even strokes, meaning less likelihood of bubbles or mistakes. This means that the coat of paint in question will dry faster, allowing you to get on with a second if needed and pleasingly, finishing the whole project in a timely manner.
