This hutch was easy to put together with just a Phillips head screwdriver.  The wood is very light and the pieces were well fitted to each other.  It is sturdy enough to hold up to my rabbit, but I wouldn't leave it out where there are predators.  It is rather small.  I have a french angora rabbit and it will hold only one.  Also, I plan to add a wire floor above the sliding tray for cleanliness and on the bottom of the hutch to prevent digging.