Lots of room for improvement, at the risk of cost increase. Panels are too flimsy without adequate bracing. Holes should be made to line up. Holes should be 2.5mm, not 3mm, to get better bite with screws. SNAPTITE is a fail, still allows too much flexing. Chellels should be heavier gauge. Holes for corner panel joins are too close to the edge.  Instructions lack detail.
. Apart from that....great