I own Many rat cages, made by various manufacturers.  This collection is by far the Best!  Easy to clean hard plastic floors. The doors swing open for access to the Entire cage - for cleaning as well as access to my Rats.  Rattie playtime is much less stressful with the easy access the doors provide. The ONLY issue is the pan depth, any bedding can fall out easily.  I purchased a deeper replacement pan for the bottom floor. This cage can also be used as (2) cages - which is AMAZING! you can lift the ladder under the 2nd full floor to separate the cages. IF you have more than (2) rats...I would Seriously consider this cage.  Be sure to check all parts upon arrival. It is VERY heavy and some parts can be bent in shipping.  Luckily, I had no issues. But many ppl have commented that this manufacturer is More than willing to replace any bent or broken parts - but it can take a cpl weeks.  Overall a Great buy!