UPDATE:

I think it took a little getting used to because my son now doesnt thrash in this suit. We still use it for just naps and although he doesnt fall asleep as quickly in it as his other swaddle, he does stay asleep for at least 2 hours in it.

He still stretches and can put his hands in his mouth when he wakes up in it which is good for us so he can self soothe.
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Im on the fence about this sleep suit. I bought this to see if my son could sleep through the night and Ill be fair and say he hasn't had this on throughout an entire night (Ill explain why) but I don't think it would work for that purpose either way.

Right now I am using the sleepsuit for naps in my sons crib to make later transitions easier out of a swaddle. It works well for naps as I cant put him to sleep without a sleeper or he will wake himself up by startling himself. Hes a very strong baby so this sleep suit does not prevent him from kicking up a storm or throwing his hands. That said, it does help to minimize how often he does so in his sleep. However, a different swaddle would work much better. I just prefer using this one for naps at the moment. Essentially, what would be a 20 minute nap in his crib is now an hour to 2 hours in this sleep suit. You might say, wow, thats amazing! So why the 3 stars?

Because this works just like ANY sleeper. Theres no magic to it and if I had used a swaddleme on my son he would sleep even longer. The reason I don't use a different swaddle is so he doesnt confuse daytime routine with nighttime routine because as soon as I put on his nighttime swaddle, he settles down for sleep.

The material of the cotton suit is very soft and comfortable and although my bedroom gets stuffy, my son isn't sweating in this.

Hes 2 months now and 13 pounds so hes not filling it out yet and hes got room to grow. It may work better as he gets older and doesnt startle himself as much. But by that time he might be rolling over and we won't be able to use this anymore.