Well, first of all I was upset that it went on sale right after I purchased the unit.  Just so you know friends, Wayfair will do nothing to help you with that.
On a super positive note, I love this unit.  We went on and hired a handyman to install it, as some suggested. Money well spent. My husband helped but I am glad I didn’t have to. The unit is well made and sturdy. It was just what we were looking for. A nice feature are the lights and the little shelf inside. The handyman said, never try to move it. Because although it’s well made and in place, it’s still not real wood.
We were able to use our really nice memory foam mattress that is 12”. It fits perfectly. It’s a bit heavy to let down and put up. Two people if possible to let down. One strong person - possible. 
No problems.
Other than the unpleasant hiccup with the price and a delay in shipping, both of which have nothing to do with the actual unit, we like it. Our first guests arrive next week.