For the price, you can't beat this product. It was larger than I expected. Materials is nice. I was able to fit a 7.5" mattress for the trundle. With a 9" mattress on top there is a gap between the back and the bed but if you plan on putting pillows across the back you should be fine. There are also small gaps from the mattress to the frame with a regular twin mattress but doesn't look bad. Assembly was easy but a little time consuming screwing in the wood planks. Overall a nice product.