you are right, and why deflation better than inflation?

Well, inflation makes the money you have in the bank loose value over time. In extreme examples you have countries like Venezuela and results are bad: people struggle to keep their buying power, companies are leaving the country, imports become way more expensive, etc.

I don't think there is a real world example of a country with deflation, so I don't know if the opposite would be true or what real consequences would be, but you can expect the opposite to happen.