Don't know anything about this particular place, but without a single exception to date, every place I've ever seen that purports to be selling "discounted" business class tickets is either an outright scam, or is (at best) a very, very shady operation dealing in fraudulent tickets that may or may not leave you stranded with no valid flight and no recourse.
Airlines do NOT sell discounted business class tickets to resellers, ever. Period.
Those who claim they are selling "discount" business class tickets are ALWAYS fraudulently selling black market tickets that are redeemed with someone else's frequent flyer miles that were bought and sold. Buying or selling frequent flyer miles is a clear and explicit violation of the airline's programs. The airlines do not look kindly on this activity (/understatement), and are actively on the lookout trying to catch anyone participating in it. If you buy a "ticket" that was purchased with someone else's FF miles, and they find out (it's super-easy for any airline to check that: how come your name doesn't match the name of the FF account used to book that ticket?), you are regarded as a participant in fraudulent activity, and if the airline catches you, they cancel your ticket on the spot and tell you to go pound sand, and you have no recourse.
No way would I ever deal with any outfit that claims they have some magical way of obtaining discount business class tickets and selling them to you at a discount. There is no such thing. Caveat emptor extremis.