Had a very poor impression of the company, which demonstrated a lack of respect for people's time & expertise.
Steps: 1) HR call 2) Call with PM 3) In-person case study presentation
While the first 2 steps were fairly normal, the case study brief was poorly written and had extremely unrealistic expectations for the 3 days given. It turned out to be a project that the founder was looking to implement, and it became pretty clear that he was much more interested in a free consultation.
Avoid interviewing here if you have the option.