Very solid, heavy desk once put together. Two pair of hands is probably useful during one stage of putting it togtether, but I managed it on my own by balancing the cross piece on a chair before adding the second side panel of the desk. When the desk is put together there are some tiny drill holes on the inside of the side panels which are visible. All other holes with screws in them come with plastic caps to cover them. Would've been nice to have some for these tiny holes as well. Having said that, they are difficult to see unless you're looking for them. Other than that, great desk.