Good overview, though I wish they'd balanced it out with some of the negatives.
You miss some of the human interaction you'd get from working in an office;
Online relationships aren't as strong as real-life relationships;
You have to be mindful of how to correctly deduct living space/utilities for taxes
I've worked from home for a bit now. I quite enjoy no longer having to sit in a car for 2 hours a day. That's 40 hours a week I've gained back.
IMHO, if you want to have a healthy family life, This is a serious issue.
When you are done for the day, you should stay done for the day. Did you find yourself wandering into work at midnight when you had to go into an office? Probably not, so why are you doing it now?
Excuse the mostly pointless post, but how many days are in your week? :)