Moving to zero-tax countries

Hey!

Has anyone moved to a zero-tax country and can share her/his experience?

By moved, I mean move the business. I am thinking about moving my business to Dubai and make sure I don't spend more than 6 months in another country (where it would trigger the threshold requiring me to pay taxes in that country)

Or maybe Portugal? I know @levelsio has created the rebase.co service for that.

Any thoughts or feedback?

Thanks in advance!