Great house of our little bunny!  Instructions for assembly were mediocre but we could figure it out.  The fit of all the pieces is good.  The one item that got us was the support beams for the 2nd story floor pan, I ended up putting in additional screws to make them actually work as support.

Once together the only issue we had was the metal floor pan was making the bunny nervous since it's slippery and makes noise.  We put some hay and bedding material on it and that solved that issue.