Looks really nice and easy to put together.  It comes with an Allen wrench, but I used my own screwdriver with an allen bit and Phillips heads since there are a lot of screws.  When assembling the main frame, just snug the bolts and then place the assembly where you will use the hall tree and tighten those 4 screws down.  This will "level" it to the floor and keep it from wobbling once you put it all together.