I always wanted to mine but never had enough resource. Over month, I have gathered around 0.11
BTC from faucets and twitter giveaways, with which I want to buy hash power. The cheapest one I see around is offered by
www.cloudmining.website, which is 0.001
BTC/GHs. But, before I invest, I'd like to know what people want to say about their experience about this service. As it seems, at current difficulty, I should reach ROI at 4 month. Please advise...
Update 30/03/2015: In fact, I invested 0.11
BTC in this service and have already made ROI.

Careful with cloud mining sites, they are probably not what they seem to be. You cannot prove that they actually mine anything, they might be a ponzi scheme, so be aware with them.