I moved back in with my parents from ages 25-28, and it was a really positive experience. I am much closer to my parents now because of it. Of course, all my sisters had already moved out, so it was a pretty calm household.
My folks had always told us kids that we could live at home for free while we were in college, but I went in the Army instead. Once I got out, I worked for a few years at various motorcycle dealers, making barely more than minimum wage. I got really sick of being broke, so I called my folks up one day and said, "Does that offer to stay at home if go to college still stand?" They said sure. "Great," I said, "My lease is up tomorrow." To their credit, they rolled with it.
I lived at home and worked part-time while I went to community college for two years, then went away to a 4-year university while staying at home over two more summers.