Never said it was easy but many people assume they are going to U of M and/or guaranteed to get in and then they fail. There is a high rate of study permit refusals for going to a private DLI especially ICM. Again apply directly to U of M.I know people personally that enrolled in it and they say its rather hard academically not the opposite. I didn't see any statement from them stating that you are guaranteed admission into U of M but from what I know from close people is that the worst case scenario you get accepted in a lower program/less competitive program than the one you were hoping for in U of M.