One obvious benefit is you don't have to rely on banks to send money internationally. Just decide who you want the money to be sent, and that's it. No credit card, no wire transfers, now waiting for the bank to do its job, no nothing. And well defined fees, not overly expensive, and the fee doesn't depend on the amount of money you are sending. You do all that easily from the comfort of your home. And there is privacy if you like, semi-privacy like with bitcoin or enhanced privacy like with monero.