Loopring is one of the project which I have paid attention and purchased their LRC token (ERC). Their main advantage is that they support DeFi (get recognized in DeFi boom). Lot of uses cases for exchanges (zero protocol, non custodial etc.) but has only built their own. There is just problem generally that it is not well adopted and has a small user base. On the other hand I think that utilizing NEO network is much better than Ethereum. Overall I would support this project and would hold now few LRN token (NEO) which has slightly better potential.