I've registered there for those free Gh/s, even if the website turns out to be a scam later on, I still haven't invested anything so I just might as well let it go and check on it in a a month or two. Tho I'll try to withdraw later on to see if they'll actually pay up but my suggestion is to not invest if you have these free gh/s on the start. I can say that I'm a dragon in real life but without any further proof, other than my word, that isn't that much believable.

Not meaning to call them a scam right of the bat, but we have witnessed quite a lot of scam cloud mining websites in the past, and it's even more suspicious when we know that the BTC, effective, mining requires a lot of power and money.

Also, that's why I like Moonlite (signature), they're not focusing solely on btc but "mining predominantly Bitcoin, DASH, Litecoin, and Ethereum".

But in the end, do not invest in any form of BTC cloud mining, some alt-coin would be ok but not BTC, we all know how's btc mining today.