https://news.bitcoin.com/bitcoin-coms-cloud-mining-allowing-anyone-mine-bitcoin/
Their own press release states that they are partnered with North Americas largest bitcoin mine to provide hash rate including posting pictures of the main bitcoin.com developer in said mine.
If it were up to me, I'd contact that North America farm to skip the middleman
Nevertheless, transparency is a good thing and it could be an option to consider then! And as icon73 pointed out - if they do guarantee hash rate, any risks are at their own cost. As I understand, customer is expected to receive cloud mining contract payouts regardless if the miners providing this hash rate stay up or down.
Green light so far. But since it's a "fresh out the bakery oven" product, it makes sense to try out with small amounts first.