I went through a period of selling off and consolidating equipment a few months ago. Sold off the 50/2.0 Planar and the 50/1.4 Nikkor, and got the Nokton. I gained a stop over the Planar, and gave up its ultimate (and sometimes excessive) sharpness. I gave up the Sonnar-dreaminess of the Nikkor, but no longer worry about its focus shift. In terms of its "signature", I think the Nokton is the perfect middle ground between the two, and the ideal 50 for my shooting. In addition, it's compact and beautifully made. My experience is film-only; I can't speak for digital performance. The bottom line is that I couldn't be happier with my decision!