personal opinion/experience

So I've gotten mixed opinions/experiences on the subject of when baby should sleep in their own room/crib. It seems like the earlier baby moves to his own room the better sleeper he is/becomes and sleeps through the night as a baby and toddler. And then some moms have said the longer the baby cosleeps with the parents in their room the harder it is for the baby to adjust being on his own and wakes more frequently as a baby/toddler. Curious if your experience coincides with this or if your experience is the opposite?