It's obviously got some advantages but it is still quite early. Blockchain is proven technology that is known to work for years without failing, even though for blockchains, it has got fundamental limitations as to scaling efficiently for sure.

DAG based coins such as IOTA have potential, the free transactions that they offer are a great selling point in my opinion.

But they have to make sure that everything is bug free with their software and code, which is something that is not the case at the moment. Disappearing balances for no reason on their GUI and slow transactions are not a good start imo.