My wife nanny'd our triplett grandsons for six years until they started school. She got a salary also and I don't think that she ever complained to our daughter about being late. It was a constant PITA, however, never knowing for sure when she'd get off work. Making after work plans of any kind was always iffy. I hated it.

I don't want to overstate the negative, however. She (we) developed a much stronger relationship with the tripletts than we have with our other grandchildren. (And we have real good relationships with all 10 of our grandchildren.) You can't put a price on that.

One other thing. Please don't take my remarks personally. You asked for an opinion and I gave you mine. That's all that it is.