Good try, good try.
I don't use such services. I'm not sure if this is more profitable or much more convenient.
Honestly, I don't see any advantages here.
Register and forget?
I can see why it appeals to some people but since it's free for private users I'd be intrigued to know whether they pad the exchange rate and whether it's an instant buy the moment you get paid. If both have some head room that could wind up being a lot more expensive that just buying yourself.