From my MIL, no, she is sweet. But Mothering styles are extremely different. From my mother, it would have been a blessing. Like minds.
From MIL, there is too much friction on how a baby should and should not be taken care of. Two women raised differently on how a child should be raised, even in the best of relationships, this can be an issue.
I would exactly like ScrappyCats said. Just say "hey im coming" see if you get a "great!" or a "hmmm, were going to be busy....."