As the other reviewers have mentioned, there is quite an exposed gap between the frame the mattress.  The end is where it's most noticible - at least 3 inches.  If you have a longer quilt, it does hide it, but you have to fix it so that it hides that gap.  Same with the sides, but it's about 1.5 inches on the sides, so not as bad.  It seems sturdy.  We have a 14.5" mattress, so I'm disappointed at the lack of headboard exposure once the pillows are in place.  We did replace the European slats with our own flat slats; the European bowed effect gave the mattress significant bounce. (we have a standard coil mattress).  This might not be a problem with a foam mattress.  The "hardware" for the slats is somewhat cheesy.  They pop out of place when you put both sides in during setup.  Overall, I'm happy with the purchase and the look of the frame.  The 4 stars is for the gap issue.

Pros: sturdy, very pretty
Cons: gap all around, headboard could be 2 inches taller