Yep, it's great. I quit my full time job on Mar 17th and have been doing the part time gig ever since. I work for my mil, so she's pretty good about letting me come and go as needed. That said, I usually work 3-4 days/week, around 4 hours/day. I file insurance claims and handle billing for her - with the occassional odd ball task thrown into it. The best part is that we get along great, so it's not weird. Also, she's very excited about her next grandbaby to the point that she wants me to bring the baby to work. That's pretty nice, since I won't have to worry about child care (which wouldn't be worth the money working PT).
ETA - I take Fridays off every week.