4 months and cry it out method???

So for the last week I have been putting my daughter in her crib when she is drowsy instead of all the way asleep. I wanted to try so she doesn’t get used to me rocking her evernight and create bad sleeping habits. When I lay her down she just wines for like 5 minutes. No screaming. She cried a little the first night and I picked her up soothed her and put her down. Now when I put her in her crib she doesn’t cry and goes right to sleep. Is this ok? I know a lot of people don’t like the cry it out method and think it’s harsh but she barely cries so I thought it was ok. Thoughts?