Deflationary problems seems to me a overblown issue, and the cure may be worse than the disease.
Inflation prevents low income earners from saving, but they aren't in a position to take risk and invest. Therefore, it causes their networth to drop in relation to the wealthy (who can take risks to keep up by investing).
Inflation also keep wages down, as it's easier to pay the same wage , and any increase must be above inflation rate to remain at the same purchasing power.
Inflation also leads to speculation, rather than to invest in productivity increases.
With deflation, you end up not spending as much on discretionary/luxury goods, and only spend the minimum necessary. The prevailing theory is that this leads to slowdown in the economy - but I say it leads to low to zero mal-investments. If you have a high chance that your capital is going to have more purchasing power later, you would only invest in good, known ventures that is not speculative (e.g., building basic infrastructure that has a sound business model, rather than building fad apps).