Quality of this bunk bed is solid! Assembly was easy to follow and as mentioned in some reviews, it can take several hours, but it is worth it. 
We love that the all drawers are on rails and that the steps have added grip so my kids do not slip while wearing socks. I love that there is extra railing on the top bunk even with a 10" mattress so no one can roll out. I would highly recommend this product if you are looking to free up some space and get a solid, good quality product.