We chose IOTA over other Cryptocurrency due its 4 main advantage over the other cryptocurrencies.
They are Scalable, Decentralised, Modular, and Fee Less.
But IS IOTA Is Not a Blockchain Technology ?? 
Many people questions about IOTA is that IOTA don't have PROPER WALLET,
And they are taking a long time to develop proper wallet.
Wallet they give is not up to that level.
However best part of IOTA is zero FEES