Ethereum's dirty little secret is that the Solidity virtual machine is poorly written and full of security holes. The reason the most popular app on the platform is Cryptokitties is because you'd have to be nuts to trust Solidity with real money.
Even if it were secure, Ethereum already has a scale problem with the core dev team recently advising people to stop submitting new dapps because the system is already overwhelmed.
In case anyone is interested, just one example will make the point. Solidity requires every machine on the network to run untested code that you can't see (without some difficulty). That code can branch to anyone else's code (which is even harder to see). Evening sending Ether to someone causes code to run that you can't audit in advance in any practical way.
This design flies in the face of the open source, trusted app model where responsible IT organizes audit code before they run it -- or have it audited by outside parties. Solidity creates a bleeding hole on every computer that runs its blockchain and this alone (although there are other terrible problems, too) makes it unworkable.
"recently advising people to stop submitting new dapps because the system is already overwhelmed" - very interesting claim, can you provide a source please?
Even if it were secure, Ethereum already has a scale problem with the core dev team recently advising people to stop submitting new dapps because the system is already overwhelmed.