No, they haven't. Apart from the obvious "an invasion will probably happen" (which people like John Mearsheimer, outside the IC, have predicted since 2014), they have been rather inaccurate. No heads up about Putin's decree to recognize L/DPR.

Jake Sullivan and others even admitted that some of the "intelligence reports" were fabricated as "deterrence". That is, "If we shout loud enough about <negative outcome> before it happens, perhaps <negative outcome> perpetrators will get cold feet".