The Prop 19 planning really only makes sense if both of the following are true:
1) You have a VERY low property tax bill (relative to current fair market value); and
2) You believe your children will want to hold onto the property after you’re gone (rather than sell it).
If both of these are correct, then there are still some other things to consider, but at least this might eliminate the need to even look into the matter any further!