I think there is nothing surprising in the 'finding' that achieving a balanced life for all family members is positive.
I really didn't want to go back to work. I felt so awful and resentful at the time, and I still feel that I somehow betray my young children whenever I leave them: they both shared this opinion, although DS is much happier now that he's nearly 5. My DD was incredibly distressed as I set off for work this morning, although DH (off work atm) assured me she was happy again within a few minutes. So that can be shite shite shite.
However, my life is very balanced (3 days enjoyable work within office hours, 2 days with both my children as sole carer, then 2 days with DH added in to the mix) - and I'm pretty satisfied with it. I get lots of quality time with my children (I do little else when I'm not in work) and I get to use my brain and talk to grown ups (plus use the lavatory in peace) for 21 hours a week. Bonza.
I think my children would have rather I stayed at home with them, but I'm utterly crap not that great at sustaining Happy Mummy through prolonged periods of caring for them. I get tired, I feel resentful, I am snappy, I run out of enthusiasm; it's not a pretty sight and I don't think the children have a good time when I'm like that.
As long as you find good childcare and keep the hours reasonable, most children cope well. My kids do all kind of creative stuff that I would never dream of and the staff are far more patient and calm than I am.
I still envy SAHM, though. I will always feel guilty for putting babies into childcare when they were 9 months old.