I did participate in the product review from the Container Store. It was very easy, and we got to keep the products. My girlfriend liked the travel bag for makeup/jewelry. I will participate in the future. The review on the 10 products was printed in advance and had three checkbox questions to answer. They asked for a comment or two and a photo with some of the products. Easy and we will use a few of the items in the future.
I can also confirm it's legit, however, after I had responded to the initial request, and was going to accept, they sent too many terms about using my likeness, name, etc, and I withdrew. I know others might be fine with it, but this type of thing really doesn't sit well with me.