the item is set up in our den where it does take up a lot of space!  However, it is fun to watch our two young cats (1 yr and 1-1/2 yr) climb, bat at the balls, and just relax on the upper levels, often sleeping there for long periods of time!
It IS awkward to move, so new purchasers should be sure they have it positioned where they want it to be permanently as they put it together.
It is necessary to occasionally retighten the connecting screws.