Been trying so hard to get into 1.5 (Okay, maybe not that hard) I liked the taste of it initially, but it quickly got to be something which I dreaded eating and mixing, about half done with the 7 bags I got back in mid-October, probably drinking it about once every week. I haven't been chilling it which I think helps a lot, but then I lose a lot of the convenience which I got it for in the first place.
Did you just get sick of the flavour? Have you tried adding other foods to it? I had a friend recommend cocoa powder.
That's definitely a part of it. It's not so much that it tastes bad, it's just so bland. I've mixed it with my cinnamon protein powder and that actually made it pretty good. I'd still eat it a lot more if I had 2.0 I'm thinking, even if it tasted the same. Having to refrigerate it after mixing really kills the reason I got it, convenience.