Co-sleeping -> crib transition

Looking for others’ personal experiences with transitioning LOs from co-sleeping to crib in a separate room. Our daughter is 9mo and sleeps with us at night. We just transitioned her to napping in her crib in the nursery during the day and she’s doing well with that. Some nights she sleeps great and so do we, and other times (honestly it’s not too bad or frequent) she’s restless and it wakes us up, too. She does wake up once overnight for a 4-5oz bottle still.

My main questions are-

does it make such a big difference as sleep consultants lead to believe?

Do you (and LO) really sleep better more consistently than with co-sleeping?