Marco Arment:

But the M9 also has slow shut­ter response, a slow image proces­sor, slow shot-to-shot time, poor bat­tery life, and a small, low-resolution screen, even by 2009’s standards.

Add:

• “There’s also no autofocus [...]“
• “The sen­sor is mediocre at high ISOs [...]“
• “The rangefinder design also hurts short-distance framing [...]“

The viewfinder doesn’t look through the lens, and then there’s the her­culean price. Arment, who is clearly spoiled by the Canon 5D Mark II, con­cludes: “The Leica M9 is dis­ap­point­ing [...].” I guess that’s one less thing to lust after.