At the beginning, my husband did not like it because it did not work the way we expected it to work. We plugged it in and tried it. It didn't work. No lights, no sounds, no rocking movement. I wondered if it needed batteries to somehow form a connection so we decided to get the D cell batteries (it takes like 4) and it works!
The manual says when you put the batteries in and plug it in, it should not use the batteries, but there was no proper indication to show if it was using power or the batteries still. So we conducted an experinent. We left the batteries in and detached the power supply. We used the batteries until it's completely drained. We knew it was drained when the light was super weak, flickering and the whole thing turns off after 1 rock. We plugged it in and it works! The light is bright and the rocker worked perfect. We have since replaced the batteries as we occassionally use it without the power supply whenever we need to move the bassinet around when we have guest over.
Now for features! We absolutely love the fact that there is 3 positions - flat, incline and swing. My baby loves the swing and incline position. The swing position allows to see us clearly. The rocker comes with white noise and instrumental music. We don't use these buttons as our baby doesn't really enjoy them so I can't review them but they sound pretty basic. Now for the best part - the automatic rock function. It has 6 different settings. There are reviews that say their rocker barely rocks. Not sure if they got a faulty one or their power isn't strong enough but this rocker ROCKS. We NEVER go above a 2. Sometimes a 2 feels intense. Keep in mind that when your baby soothes his/herself, the rocker takes that momentum too and sometimes that makes it either slowdown for a moment or move a little faster. And yes! The mechanically clicks can be loud when you turn on the rocker but it's honestly not super terrible. I think it helps my baby fall asleep because of the consistency in noise clicks. So if clicking noise annoys you, don't buy it. It's not silent.
This rocker has been a lifesaver. My baby was spoiled and wants to be rocked all the time. We invented in this because we were so tired from manually rocking him and we have 0 regrets buying this. Yes, we had a rough start but now it's a must-have in our books especially as first time parents. Our baby is now almost 5 months and we had this rocker since he was almost 2 months old. He is slowly but surely outgrowing it and my husband is really sad this auto rocker doesn't come in a bigger size. So yeah, i highly recommend it if your child loves being rocked. Save your hands and strength, get this auto rocker.