Administrative applicants have rated the interview process at Interface with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 87.9% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Phone interview, then an in-person interview. This seemed to be a very long process, but overall a great experience. I am still waiting to hear back on if an offer will be extended or not.