Although I did a lot of reading through the many product reviews before purchasing this product, I was lured by the mainly positive ratings and the statements about how happy some users are with this chair. My gut tried to steer me away from purchasing this but unfortunately I took the chance despite some of the negative reviews pointing-out some concerning and recurring issues. Many of those negative reviews turned out to accurately describe aspects of the product I received, but I also found one MAJOR ISSUE (#1) that I did not see in any other review and that I consider to be the worst. This was a birthday present for my teenager and I had the greatest hopes that it would be a hit. I even told her that she will spend most of her free time on/in this chair... Now I am left with having to find a replacement after this present was a complete bust. For what it's worth, here are my issues: #1 - NOT MEMORY FOAM - It seems to be some cheap foam that was ripped into chunks. This is something I did not read in any other reviews and it's the biggest issue for me because I consider it to be false advertising. Memory foam, especially if high-quality, is quite a bit more expensive, heavier, but also more comfortable, so this seems to be an attempt by the manufacturer to cut cost. The particular filling I received springs back immediately after compression (zero memory effect) and is much lighter than I expected after reading review from others. I have no problem lifting this bag up and carrying it around with one hand. No problem if the product description matches the product, but calling this memory foam is FALSE ADVERTISING! #2 - CHUNKS and LUMPS - The foam pieces are too big, some of them around 6 inches. Even after separating the chunks over several days, the chair remains extremely lumpy. Sections within pieces don't have the same consistency either and are partially hard, almost like some sort of crust. All of this in combination makes the chair very lumpy and uncomfortable. #3 - CUSTOMER EFFORT - I could accept the manufacturer expecting the customer to separate foam pieces from each other to expedite expansion, but expecting the customer to rip and tear the individual foam pieces by hand is frankly ridiculous. That should be part of the manufacturing process of the filling. Worst, I was unable to actually get to the filling itself due to a zipper issue (see issue #5) but I probably would have decided against digging inside the bag anyway as that would have just turned into a huge mess. Lastly, ripping these pieces by hand is HARD. I tried for about an hour overall by bunching-up the protective polyester liner but this foam is tough and doing this for the entire chair would be a waste of my time because even 2 inch pieces still felt like little lumps. Think of it as 2 inch cotton balls, only harder. This chair would never be comfortable, even after hours of ripping pieces. #4 - INSUFFICIENT FILLING - Like so many other buyers indicated, there isn't enough filling for the chair to be usable, or at least comfortable. I am 190 pounds and as soon as I drop down, I hit the floor. Combine that with the lumps you feel everywhere, it's just a very bad product compared to what is advertised but also compared to what other happy reviewers seem to have received. Probably needless to say that I also don't appreciate that the manufacturer expects you to purchase more filling separately at an additional cost just to get a product that is actually usable (or looks anywhere near the advertised pictures). This is cost-cutting at the expense of the customers to either increase profits or look more competitive. #5 - ZIPPER ISSUES - The zipper turns out to actually be a double-zipper, which I consider to be a positive. Not sure if I missed that in other reviews or if the manufacturer learned from prior zipper issues and doubled them up to avoid loss of stuffing. However, the inside zipper is broken and does not move. If I had decided to keep this product, I would have cut the inside zipper open to simplify ripping the filling and be able to add more. But based on the other issues I have with this chair, it's not worth the effort. #6 - QUALITY CONTROL - I can't say whether I was particularly unlucky to receive a very low quality product, or whether my expectations in this chair were higher than that of other reviewers. What is very clear is that quality control is very spotty at best, with me having received a product that combined most of the issues that some others experienced as well. #7 - DIFFICULT RETURN - One thing is for sure, unlike some other reviewers that decided not to send this product back because there is no way to fit it back into its original packaging, I will go out of my way to manufacture a box that will work as I have no tolerance for false advertising. Hopefully this will ultimately help others receive a better product that can meet expectations. This is likely the worst review I have ever written on Amazon. I don't do this lightly but hope that others can benefit from my experience and hopefully avoid it for themselves. In hindsight, I should not have taken the risk considering how difficult it will be to return this bag. I welcome any feedback, including comments from the manufacturer!