In my experience 60s cannot provide you all the actual freedom to use arrows, and modified arrows for many useful things like windows relocation shortcuts under win 7, or for block selections in excel, or for simple navigation. I have used a Poker X (60%) for almost two years now, but now I am using also an FC660M, and I am more productive in this last. If you do not use modifiers with your arrows much, as I do, you maybe get accustom to FN+ for arrows in a Poker II, V60, HHKB, and the like. For me the preferred layout is the 660. The only thing I do not like of it are its special positions for the stabilizers' stems of the spacebar. Besides that only the right shift and the windows key are not standard.
Some recent keycaps GB have already include some provisions for the right shift, and the windows key in order to get full sets the covers the FC660M. For the space bar I already got a black, a white, and a gray one, in PBT, that mostly match most of my sets now.
In the quality of build I may say that the FC is very well made, robust keyboard.