> extremely high volatility

Definitely

> Slow transaction verification

Depends on your definition of slow. The fact that I can send hundreds of thousands of USD across the world in about an hour seems to beat any other method easily available to me.

> very high transaction fees

A month or two ago, sure - TX congestion had driven up fees to ridiculous levels. Now that the congestion has cleared, I can once again send hundreds of thousands of USD across the world for less than a dollar.