I like that Polkadot is a project that's trying to solve a key problem, blockchain interoperability.
It's a Layer 1 solution (although they market it as Layer 0) that wants to create links between all public and private blockchains. A big task, but very needed.
The only downside of this project is that they have chosen to use a proof of stake (PoS) model. PoS will consolidate the power of the network into the hands of a few who have the most coins. Minus one star for that.
But overall, it is a solid project that provides a very useful service. Show Less