So far I'm loving this mattress.  It's extra firm like the description says.  I was surprised that a coil mattress would come in a box.  I gave it 4 days to fully expand before sleeping on it and my first night was great.  I hope this mattress holds up as I had to return the first one.  I might add that Wayfair's customer service is great as they walked me through the whole refund/exchange process.  Thank you!