My husband and I are thrilled with these chairs.  They were delivered in the middle of September, and we used them all fall.  No issues at all with them.  They are comfortable and take stress off of your back.  They are also very sturdy, yet fold up and are easy to move.  The chairs are a darker blue than it appears on this website, but we like that better.  I do not know how they hold up, if out in the weather.  We keep ours on our covered patio.