Here's my past research about that site. Someone was also asking about that site in the past.
Doing a bit of research, I'm not sure if it is a scam, but it most likely is. Here's the whois result:
Registrar:Network Solutions, LLC.
Registration Date:2017-04-03
Expiration Date:2018-04-03
Updated Date:2017-04-03
Status:clientTransferProhibited
@domaindiscreet.com
Looking at the registration email, I think it looks like sort of a disposable email. Though I'm not 100% sure. It also has a video of their "mining operations" on their mainpage, which is a video from 2014. They probably just youtubed "bitcoin mining" then found that video and claimed it was theirs. Also, I couldn't even find reviews of the website, or any posts about it at all on bitcoin/cryptocurrency forums. I would stay away from it.
If you're looking at buying miners, go to the reputable sellers instead.