I have about had it with C1 stability issues on my MBP. I have the newest and fastest MBP with max (16G) ram, the newest video, and still get random -- and moreover, frequent -- crashes.
Soooooo... I am seriously considering moving back to -- dare I admit it -- Lightroom.
My concerns: I like C1 workflow, love the quality of conversion, hate the instability. With old LR, I never quite fell in love with the parametric adjustments and vague masking as i like more precision and control. I also hated their cataloging methodology as opposed to C1's sessions (C1 sessions fit into my workflow exactly the same way I work). But I suspect it's at least stable.
What say you Nikon shooters that use or have used both?