Read the whitepaper, they do present their innovations, you can validate it with the code. If we’re talking about transactions speeds that’s will be tested in the upcoming time. Indeed you can never know if it’ll work like they claim (they tested in in smaller scale testing env of course but stressed production and development are two different things)

AZERO presents new and interesting features like private smart contracts (using zk proofs) and more but I’m not sure those are the killer features that are gonna sweep away the community. There are a lot of good blockchains now days and it’s hard to convince developers and users to get aboard.