Well done for getting thorough day 2! The packs do take some getting used to. I find them actually quite tasty. In my first week I chose the soups for lunch, I think it feels weird to just have a chocolate bar for lunch. However, I am on week 2 now, and for my packs for this week I chose mostly shakes and porridge. It is funny how your tastes can change; I actually enjoy the thought of having one now.
Good luck with the rest of the week and look forward to hearing about your first weigh in.