Well it seems HashFlare is quite profitable at the moment, of course with BTC price and mining difficulty adjusting all the time it does vary but I think it's a solid investment.

Also, Genesis Mining has no contracts left so HashFlare is a good option.

Anyway, here's my expierence so far as I've just bought in:

<iframe width="560" height="315" src="https://www.youtube.com/embed/0_8Jn7PP2m8" frameborder="0" gesture="media" allow="encrypted-media" allowfullscreen></iframe>