It took less than two hours once the jig was made and the lines drawn to have all of the moulding up. Then came patching the nail holes, caulking the top and bottom edge and corners. Taking a break to eat then painting the CM, but I still need to touch up the wall paint.
I used a pneumatic nail gun which really makes things move quick, no matter what the project. And using that, I could install all of the pieces without assistance, since Wino was at work. It would have taken forever if nailing up the boards the old fashioned way!
One last thing, as prep for the CM, I used expanding foam to seal the wall to ceiling corners, then cut off any that was in the way. I did this because I could feel a cold draft coming from the gap at the ceiling to wall. I don't know why or where it was coming from (attic, wall?) but sealing it took care of it.