Cloud Mining Profitability?

Hi Guys,
It would be beneficial for everyone to discuss about Positive and Negative of Cloud Mining. My experience with this has been somewhat mixed. I invested some amount on Ethereum mining via genesis mining and I am seeing the payouts are declining on daily basis almost by 2-4%. Is it the case with own mining as well or is it something being seen only on Cloud Mining?

Also I don't see crypto calculators showing this much variations. Let us discuss this and help each other to determine what are the best options.

Below are some of the numbers from my account.

dagger-hashimoto ETH balance of 0.00520244 added to your account on 2017-06-17T12:00:00+00:00
dagger-hashimoto ETH balance of 0.00541496 added to your account on 2017-06-16T12:00:00+00:00
dagger-hashimoto ETH balance of 0.00553852 added to your account on 2017-06-15T12:00:00+00:00
dagger-hashimoto ETH balance of 0.00578521 added to your account on 2017-06-14T12:00:00+00:00
dagger-hashimoto ETH balance of 0.00591226 added to your account on 2017-06-13T12:00:00+00:00