It's not too bad after figuring it all out, which took the longest. Ford Did some really interesting things. If you want to use the stock amp meeter it is very time consuming to remove the lead and rework everything. The harness in pretty good quality and the leads are plenty long.
I mounted the fuse panel behind the glove box, and still had 2+feet on all the connections under the dash. I was going to do the headlight relay upgrade while I was there but it made such a difference when I tested it I'll do it if I ever upgrade to H4's.
I have done both a centech and painless before. I wouldn't hesitate to do another one of these in my next rig.
If I do this it will probably take 3 or 4 weeks, as TDS is coming up in 2 weeks and I'm gone for 5 days in the desert, and no I'm not taking the laptop.