I can't tell whether this is satire, shilling or an honest-to-goodness review. The generic nature reads like the kind of virtuous extolling I'd hear from an NPC in Fallout or the like.
People really, really, love their software.
Their most famous product TODAY is probably OmniFocus, which is (arguably) the top-tier "Getting Things Done" style task management app. I used it for a long time before I switched to OrgMode.
Their 2nd most famous product is probably OmniGraffle, which is sort of a Visio-but-better type thing for Macs.