I have used the Fumoto drain plug on several cars, including my Insight, for several years and have not had any leaks or other problems. I think Fumoto now has some good competition from EZ oil drain valves, though I have only used Fumoto.
2010 EX-L, 70K (my daily)
2002 Forester, 155K, (my rough duty car)
2007 Accord 4 cyl EX-L,145K, (son's car)
2005 V70, 180K, (wife's car)
2007 CR-V, 175K, (daughter's car)