I actually love it. It reminds me a bit of Love Again which is probably my favourite track from FN anyway.
It's not as Dua heavy as perhaps some people might have wanted but they sound great together and that production is all kinds of fabulousness. DISCO is really screaming out for a beefed out extended album edition. This proves how great it could be. Get some new producers (like William Bowerman) in and go for it!