Low profile. Looks great in my son's room. Smaller room so didn't want anything bulky. This is perfect.  I like that the footboard and sideboards are low. Like a platform bed. This gives my future 6-footer room to hang his feet.  And makes for easy changing of the sheets. The trundle is a little hard to pull out, but not a deal-breaker.  The carpet is pretty high-stacked, so that could be the culprit. We put an 8" memory foam mattress on the twin trundle and it works fine.  VERY easy to put together. I did it in 2.5 hours without my husbands help. Like that it is scratch resistant too. Especially espresso furniture in a boys room. Took a gamble and it paid off.  Slats are a must!  I don't do bunkie boards and both the full-size bed and twin rest on slats. The slats come pre-drilled to secure to the frame for extra stability.