Hypnotherapy training in Bristol

My partner is thinking of training to be an hypnotherapist. There is a school in Bristol - The Clifton Practice Hypnotherapy Training Centre which does a course and wondered if anyone has trained there or know of it and if it is any good.

Also, i've heard that after qualifying you have to continue having regular supervision and wondered how long that went on for.

Are Hypnotherapy qualifications still valid if you want to practice abroad too or does this depend on the training done?