I work 4-ten hour days and I love it! I get so much more done on the weekends, and it really takes the stress off to have a weekday to go to the doctor, bank, etc. Also, because my boss is awesome, I can choose to take Friday or Monday off. So, a lot of times I will take Friday off the first week and Monday off the second week!
For me it is not too bad because I leave my house around 7:25, get to work around 8:00 am, and leave at 6:00 pm.