"The OnePlus One has got one of the fastest processors in the business backed by a hugely generous allotment of RAM, which means that it's a seriously impressive performer," writes our reviewer, agog.
"The OnePlus One's performance-to-price ratio is one of the most impressive we've ever seen in a smartphone, offering Samsung Galaxy S5 performance for less than half the price.
"If you're after a truly top end phone that can be customised to the Nth degree, and you don't mind accepting a few rough patches as part of the package, we can't see a better - or cheaper - alternative."
Is there no downside? Well, it could use a microSD slot and the call quality is not great - but if you want a Galaxy S5 standard smartphone for feature phone prices, you can't do much better.