Are you though? If you factor in 4 hours of commuting minimum on top of an 8 hour work day (generously low), plus 8 hours sleep, you end up with 4 hours of quality time as an absolute maximum. If you have young children, this time is unlikely to coincide with waking hours anyway!
Although I agree that if I was in such a situation I would do whatever I can to find another solution ASAP.