I've been working 4/10's for about 4 years now, and love it. I'm fortunate in that I get to have the same day off every week (I used to be off every Friday, my regular day off is Monday now). I have co-worker's who ask if I don't get tired of being at work so long, but it's really not much longer than if I had a regular 8 hour workday. I would say, though, that some of the points made in the article are not really valid, particularly those about less gas/car usage. I usually use that day off to run errands, schedule appts. for that day, etc., so if anything, I'm in my car more on those days than if I were at work.