I have put a bit into ADA, I'm still learning the Ouroboros consensus protocol, depending on what I find out may change the long term decision. I like the idea of PoS and the concept they have of limiting the profitability of stake pools larger than a certain stake concentration. I am unclear if the Shelley fork will cause stakeholders to become locked-in for epochs they are submitting stake against though, which it seems would be necessary for security. Sometimes its easier to wait and see how it really operates than read all the mis-information!
RE: Cardano / ADA - shall I still invest?