I got this extra large cage originally for just 1 little parakeet for my daughter.  I wanted on wheels so we could move back & forth between her room and living room, but because it looks so nice in the space in living area...it has stayed there most of the time.  Added another parakeet and many accessories.  Had to buy smaller perches, as the it only came with the 1 large round one, and the sizes were not the standard sold, so had to buy dowels and cut to the right size with clips added.  The top tray of this unit actually came configured backwards than it stated (bars were below the tray bottom instead of above), but I actually like that better for the top.  It was very tedious to put together.  All in all - pretty cage and birds seem to like it....but definitely more space than they need.