I can’t say enough good things about this bunk bed. My sons are 3.5 and 5, and they love it! The stairs seemed a bit steep at first, but they are used to it now. The site is a bit confusing around mattress thickness (recommends both 7” and 9” in two different places), so we split the difference and went with 8” mattresses! We didn’t opt to have it built through the contractor. My husband and I were able to get it put together pretty easily, but it took about 7 hours start to finish! Highly recommend this!