the bottom box was pretty easy to put together, and even the first/lower screen was easy to install. the issues arise as soon as you try and attach the 2nd screen/trellis section to the bottom section, because the pre-holed provided brackets do NOT line up at all with the pre-holed support bars that the screens/trellis pieces then would need to attach to. It is actually impossible to attach the brackets to the support bars, so we had to discard the brackets and instead just screw the trellis pieces to each other and the side support bars. i reinforced it with some black zip ties, so not ideal but better than just letting it be a little sketchy. it looks great now that it's assembled but the reviews about pieces not fitting together are not wrong