It is a fetid dump - pure and simple. Website photos are 10 years out of date (with intention). I highly recommend you focus on the negative reviews, they are not candy-coating the truth. Over the course of a month we were in three units; 2 in one day! The first unit spewed black mold / mildew as soon as you turned on the in-wall air conditioner. Other reviews talk about 'the smell' and they aren't kidding, this place has a death funk about it; like a million tiny mice lost their lives here and were buried into the foundation of the place. If you are on the ground floor you will hear your neighbors above you; the floors squeak badly. I saw them furnishing a unit across the hall from us. The guy took some bed frames out into the grass and spray painted then minutes before bringing the into the room. I don't know where they get this furniture, goodwill or estate sales, or your grandparents basement. Some of the main-floor units have a basement with a 'bedroom' and jacuzzl downstairs. The basements are dank and moldy; you have to run the dehumidfier they provide, then they ding you for the electricity you use to dry out THEIR basement!! My posterior orifice took a major widening from that little trick.
I personally think the vast majority of the reviews on a trip advisory type site are generated by the employees themselves (users with only one review to their credit). If you must stay in Madison and don't have the cash, fine stay here but do so at your own risk to your health.
Did I mention threadbare sheets and bloodstained pillowcases?