I want one! I've been eyeballing this hybrid for quite some time, but have hesitated to buy it. I think I'll order myself one next week or so.
It looks an awful lot like a V. merrillii. I think I might get it as a substitute for the merrillii (it's really hard to find a decent, blooming-size V. merrilli. In most cases, when I do find a seller, either the plants are too young or are too beaten-up). I also hear that this particular hybrid is free-flowering, so it's another motivation.
If the denisoniana parent's scent pulled through, I think I can fathom what it would be like. You're right when you say that it smells like orange blossoms.