We purchased a pair of these.  They are a bit of a challenge to put together, but once we got them together seem pretty sturdy.  My issue with them is that you sit so far back in them that you feel like your practically lying down; great if you want to take a nap in it, but if you want to read or work on a computer, your head is too far back.  I bought them to sit in on my patio in the morning as I sip a cup of coffee and plan my day - they don't work well for this (you're not really upright enough to take a drink easily).