A: We are very proud of the following features that really make Iroha special:
YAC - a real consensus that will make sure of safety of the ledger, even if some amount of nodes are faulty or cannot be trusted
Multisignature - option for transactions when you need not only one signature to get transaction settled but more than that. If you need your operations to be, for example, signed by several people, this would be a great choice for you!
Client libraries - you can write applications on almost any platform - on your mobile phone or tablet or anything else. Moreover, with C++ and neat architecture you can even deploy a real node using just a simple ARM device!