#No Plastic Caps Supplied! 
The ladder shelf looks  better with heads of the screw fixing concealed with white plastic press caps. But they aren't supplied by the manufacturer :(  so I had to source some myself. I couldn't find 5mm hex caps so had to settle for cross head caps from a DIY chain, they stay in position OK but for children's safety I've secured each one with a small piece of double sided tape just in case any drop to the floor and pose a choking hazard. 
The shelf looks great now those unsightly hex screws are covered up. 
The shelf itself is really easy to assemble, it's a good quality item, sturdy and quite heavy, I think it is a little expensive (I had the larger size @ £137)  but overall I'm pleased with the shelf and it looks a finished item now the fixings are covered.