Great support but Breaks easily
I have had several of these forms with the back piece and have loved them.  They are very supportive on soft couches however, the last piece on this item is easily broken by sitting or shifting your weight the wrong way on it.  I have had my new one just a week or so, moved the wrong way and it broke! I took the last piece off as it is easy to unzip but cannot find a way to replace just that piece.
Rating: 3 stars