Last year I had basically an identical experience to another poster on here: lots of initial interest and excellent communication shown at first, interview process seemed fair though a lot of work was involved, was promised on multiple occasions I'd be moved to the final round but nothing was actually scheduled, then completely ghosted. Was strung along for over a month and a half thinking I was waiting to be scheduled for a final round interview before I gave up. Extraordinarily unprofessional and disappointing especially after the amount of work they had me do (and after the promises they made?!).