Using them for 8 days and while the taste is different it is still vanilla--I think the new is great-I like the texture, the finer powder goes into the shake better using my manual shaker at work, the mouth feel is more appealing, the shakes are filling longer--I don't get the terrific hunger-I gotta eat NOW at 1015 or be very hangry with the new formulation. Not quite as vanilla-y, found that adding an ounce of flat diet cream soda, a bit of cinnamon makes it terrific. Haven't tried any other adds yet. Like the longer handle on the measuring spoon. All in all this formulation is a success and I like it a lot.