enough kibbitzing–
There are many difficulties in a marriage and adjustments, add up differences in minhagim, yada yada, and you can get a toxic mix.
so why start.
it “may” work for a second marriage when the couple are less “demanding/mature/supple/flexible/whatever.”
I’m not saying it won’t work, but how many adjustments do you expect each to make to the other’s minhagim without resentment coming into play–resentment leads to fights etc.