This shelving unit is easy enough to put together, is fully adjustable as far as shelf height and it does come with a little mallet to tap the pieces into place fully. The ends are sharp, but it has caps to put on the top and the bottom and they fit securely enough. The steel frame is sturdy, and the metal shelves lock it all together and make it even more so. I had previously gotten a similar unit, but the shelves were plywood boards, and this definitely affected its stability and left something to be desired as far as durability. I have put some very heavy items on the shelves and no signs of wavering, although I know I have not come close to the 2000-pound capacity that it advertises so I cannot attest to that. Although, I usually prefer shelves with wheels, this one is lightweight enough and can be moved easily and it does sit level. It is very tall and thin, so it does not take up a lot of space. The price is very reasonable for the quality.