It's a cracker. I paid no tax on a UK salary for years. Do investigate the statutory residence test though. I think you can still spend around 90 days a year in the UK, and more some years, but an average number over a certain number of years. I can't remember the exact details.
If you spend fewer than 180 days anywhere you are essentially tax free. Noice.
There's a form your accounts dept. can fill out making you Non-UK resident for tax purposes. You then pay no income tax on UK earnings (you do still pay on unearned income, investments etc). After a year or so, you can also opt out of national insurance payments if you want.
You will have to meet the statutory residence test rule, limiting the amount of days you can stay in the UK each year....it's all online.