Starts with a HR round, hiring manager , team member , assignment and then a round with leadership. After all the rounds HR mentioned a thank note and that they will continue search looking for other candidates. I believe its a waste of candidates time and energy plus SHI gets assignment done at free of cost and this can help their future strategies. My suggestion : Have a clear discussion at what they are looking in a candidate and only if you match , go ahead with the assignment round. Its exhaustive and SHI ends up taking candidates for a ride.