Dartmoor Krav Maga

Old/young/unfit to train in Krav Maga? Can I try a class before committing? Is Krav Maga suitable for women? What should I wear to class?

Do I need any previous martial arts experience? How often should I train? What are the benefits of Krav Maga? How long does it take to become proficient in Krav Maga?