I too am on day 4 - I am very hungry (infact very very hungry!!) I love the shakes too! Vanilla with ice and coffee, with a bit of sweetener. I also have the choc ones. Both lovely.
I have jumped on the scales a few times and things are looking good - will get weighed next monday - or might actually do it on saturday - I am cabin crew and when I fly I get so bloated and retain loads of water. So if I weigh on saturday before I fly it will be a truer loss. Am working on sat, sun and monday.
I keep trying on the clothes I want to get into as an incentive - I was so hungry last night I could have cried!!
Hope you have had a great afternoon,
B x