Ethetreum is very experimental network, there are reasons why they allow smartcontranct and bitcoin isn't. Its not safe and complicated code making risk of many bugs which are dangerous to whole network. There was already so many failures in Ethereum where creator must have intervenied which caused discruption to whole decentralized and no 3rd party thing.

I wouldn't use smart contract yet, still not developed good enough. In future maybe. Watch out.