Ampleforth (AMPL) is the project I have invested in and have high expectations. The main ability of AMPL is to fairly and automatically adjust its supply in response to demand. AMPL was designed to be the simplest direct solution to the supply inelasticity problem.
In practice if the price of AMPL is above 1 USD AMPL will be rebalanced positively, contrary under 1 USD the balance will be minimized. This is a unique technique to guarantee stability The only issue is that it is not still mainstream and that the price was below 1 USD more often.