What do you want to a CryptoCurrency?

[Romeo]

Considering that this is the future, it will gradually give up the papers money, what features should hold a cryptocurrency to invest in it?

• Security
  Decentralization
  Simplicity
  Fast Transactions
  Easy to use
  Friendly interface
  No download
  No installation
  No registration
  Proof Of Work
  Proof Of Stake
  Hibryd PoS + PoW
  Capital
  Utility
  Active community
  Serious team of developers
  Transparency
  OpenSource
  Easy mining
  Exchange listed
  Blockchain own

You can choose more features and add an opinion or suggestion to a comment.
And what do you think about Bitcoin maximum price for year 2019?