Is the leica m monochrom hard to focus?

Here is what the site says about that.

From Leica M Monochrom: Leica M Monochrom: A rangefinder by Leica with a 18-megapixel full frame sensor, announced in 2012. The original black-and-white-only M, with an 18-megapixel CCD sensor. Specs - Maker: Leica - Mount: Leica M - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 18 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2012 - Type: rangefinder Focal lengths on it Full frame is ...

From Leica M Monochrom (Typ 246): Adapting lenses: M lenses adapt to almost every mirrorless body, as manual-focus lenses.

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