how can they actually prove they are really mining coins and not just taking people's money and shorting the money to pay people who have purchased hash?
please provides proof that this company is really mining coins.
has anyone actually visited their data center?
I can give you proof that they have miners.This pictures below Marco Streng specially send me on request.
I believe Its`s 100% legit. Even more, i am happy Marco Streng and his team made it possible to have a new kind of cloudmining service like this.

It`s that Iceland is to far away for me to visit, other wise i already asked for it be possible to make a trip to there.My Website article:
http://www.bitcoinupdate.nl/home/het-genesis-mining-datacenterhas anyone on this site actually visited their data center - there are some cloud mining services that I am pretty sure aren;t really mining at all and I'd like some real proof before I invest.
in addtition - can you actually see what you're mining? can you choose a pool to mine in and create a worker to see that worker actually mine?
what kind of machines are pictured there? who is the manufacturer?