I got the king size, and it was a breeze to put together. The frame is all metallic with wood slates. The metal frame's finishing is like a distressed gold color. Very nice and classy. I find the slates rather soft and flimsy, but I am a hard mattress fanatic, so for most people it might be just fine. 
We have a latex mattress on it, and it fits perfectly. No gap at the sides as described on other reviews. 
Most important for me though is that the frame is rock solid and it does not squeak at all.