Aside from the flexibility that LA and Perfect7 already mentioned, I would add that I love the simple fact that I can work wherever I like. Much of the time I do operate from my home office, but when the weather is fine, it is a joy to be able to sit outside with my laptop and enjoy it. Alternatively, if the house is full of noise (from pets, builders, neighbours etc) I can pick everything up and disappear off to a cafe or the library to work in peace. It's perfect!