Till today I had invested only 0.14btc in mining but this doesn't mean that i am week btc dealer. I had planned to setup btc mining system with budget if 30k so this will be the biggest investment in btc world.
Except own mining system mining in 3rd party machine is fully gambling, they can ran anytime with your invested bitcoin. So be safe from being scammed
It is better not to use the clouding mining. If your electricity price is cheap, you can mine yourself. It is safer.