I was skeptical about ordering this online, but I am happy I took the leap. I wanted to give my daughter’s room a living room feel so her and her friends can hangout. I am very happy with the end product. 
I was a little intimidated by the bag of hardware, but we ended up separating all like pieces in bowls. The trundle comes with two rows of five slats and three separate skates for reinforcement. The top comes with 14 slats and I ended up adding six more from the bed we took down. I feel that she will have three or fours sitting in the top and would need that reinforcement. I did need a second person for certain parts of the assembly and used a driver for the bolts of the additional trundle slats.