UW has had some pretty bad issues (e.g. systems lab abuse [1], early-entrance programs [2]). Another program I was in had serious issues such as overworking and threatening student eligibility, such that almost all the leadership involved left for other universities. That was never reported more loudly out of fear of retaliation and sheer exhaustion of the students. That being said, it is a large university with many different actors and most of my experiences here have been positive.