New cheap Chinese 7Artisans 50mm f/1.1 lens for Leica M-mount

The Chinese company 7Artisans has a new 50mm f/1.1 lens for Leica M-mount. The lens is rangefinder coupled and is probably the cheapest M-mount lens available today at $369 (listed for sale on Amazon and on eBay). A silver version is also available: