This bed feels study enough, but I wouldn't recommend it for full-sized adults to be on the top. My seven year old loves the top bunk and my fourteen year old loves the bottom. He was concerned he would hit his head when he got out of bed each morning because he's nearly 6ft tall, but he says he hasn't done so yet. There seems to be enough room.The ladder is very hard to climb on the feet, so we wrapped it in some pool noodle material that we also found on Amazon and that has worked great.Moving the bed is difficult. It will take two people. Assembling it, however, if you're determined enough, can be done by one person (although you do risk damaging your floors--I'd recommend two people). I assembled the entire thing myself in under 3 hours.It seems like it will be easy to take apart and reassemble if we move to a different apartment.The final step is to attach the ladder. The instructions weren't clear initially (several steps beforehand) that the bottom bedframe had to be attached in a certain direction for the ladder to be able to attach later, so when I got to the very last step, the bedframe didn't have the holes I needed to be able to attach the bottom of the ladder. It's ok. We made it work. But I just wanted to let others know! Pay attention to which way you attach the bottom bedframe. The holes for the ladder need to face the right direction.I didnt like that the bed squeaks from time to time and the mattress are super thin and the bottom bunk is all the way on the floor way to low.Nice design no problems yet. Takes 2 people to make it a lot easier on yourself putting togetherLa verdad todo me encanto fue una buena inversiónMuy buenasMy grandchildren love there new bedsI assembled this by myself on a Saturday evening, it took probably about 2 hours total. The packages were clearly labeled with stickers and sorted with the necessary parts which made it much easier to assemble than most other furniture I've had to put together in the past. The hardest part was fitting all the round bars in the holes before being able to screw the bottom platforms together. I waited a month to post a review so I could double check that all the bolts were still as tight as when I put it together and they are, no slippage in the hold. We got the heavy duty bunks so we didn't have to worry about a larger teen or adult sleeping on the bottom bunk and it's been holding up great. (if the mattress weighs 40 lbs and you have a 20 lb weighted blanket, suddenly a teen who weighs 140 lbs is pushing a 200 lb weight limit for the "regular" beds. under bed storage is sufficent for small boxes or tubs. Definitely pleased I made this purchase.Very easy to assemble. It took me and my husband about an hour to to set it up. After 3 months use, it still very sturdy even my husband (about 150 lbs) sleep up, me and my kid sleep down.The only thing needs to be consider is, the side bars are not very high. if you have a mattress is 8", you may easy fall from the upper.