If the plane comes as well sharpened as my apron plane did, you'll be able to make translucent shavings out of the box (with a proper iron setting). Don't be surprised if after a bit, a touchup on the hones will make it better than ever. IMO, just like with chisels, the hones stay out and with the first perception of dulling the iron gets a touch up on the hone and strop. My strop is rawhide leather glued to a flat board that is charged with a stropping compound (available from places like Woodcraft).
Have fun.
-Chris