First, you will be amazed about the return rate of their promise. With a basic plan with 199$ pay, you will earn 0.005BTC per day for a whole year? This means 200$ per day at current BTC price! Use your common sense, you will easily find this is financially impossible. I confess I was dumb to send them money, thinking maybe they have some secret techniques for mining BTC. I didn't see my funds reach and I ask for refund, they promised but never did. Here are more points that are suspicious:
1. Their customer service told me they have over extra 30K customers, but their twitter and facebook have only around 10 followers.
2. They don't have email nor phone information on the website.
3. All the links to their career positions are fake.
My common sense told me this is a 100 percent scam.