I first rated them 5 stars because I liked their tech, but adjusted to 2 after seeing their horrible tokenomics in D3Y's review. 30% to team is ridiculous on its own. Top that off with another 30% to investors and 20% to team controlled eco dev, makes it a ludicrous 80%.
The way I understand the tech is that to send data from ETH to SOL, Unilayer simultaneously runs a UNI and ETH node. The transaction is recognized on the ETH node which directly connects to the UNI node and records it on UNI as well. Another node running both UNI and SOL then executes the transaction on SOL. This is similar to how Coinweb works (at least the first half), but I haven't heard this approach anywhere else. Unilayer says they can run "master smart contracts" on Unilayer that interact with regular smart contracts across connected chains.
I also liked their marketing. They make a strong effort to explain their tech, especially with their lightpaper, they don't seem to be buying any community traffic and are not pushing any token sales.
So I'm disapointed that their tokenomics ruins it.
For those who are interested, I've attached the results of my personal micro assessment as a screenshot. Show Less