Wasnt sure what to expect, but I was pleasantly surprised at the ease of construction and overall quality. While the ladder looks great on unit, its in the way more then anything else and removed it right away. We have 4 cats (6-12lbs) and they love it.  The small allen wrenches may present a problem if you have arthritis or any handfinger issues and you may need to get some help in the construction phase. Beyond that, 2 thumbs up!!!!!!