What it is
Azure provides compute, storage, networking and platform services on subscription. For Swiss customers the relevant detail is that there are regions in the country, which satisfies some data residency requirements without an exception being written.
What it is for
Load that varies, and jobs that are disproportionately expensive to own. A second site for recovery is the most common example: the cost lands when it is needed rather than continuously.
For steady baseline load, your own hardware is still cheaper.
What to watch
The bill does not come from where you expect. Compute can be planned; outbound traffic and storage transactions much less so. Build a hybrid estate with the application on one side and its data on the other, and you pay for every crossing.
