We loved the minimalist look this gave to our room. 
Giving it 4 stars only because we have a queen mattress and got the queen frame, but the mattress is a little lose in the bed frame, we assumed the extra space is for the sheets and covers.
Additionally, be aware this is a very low bed so I recommend you to have a mattress higher than common. Ours is 14.5” height. Maybe not a good option for senior people.