Hi Annie I did Lipotrim from Jan-May this year and lost about 54lb on it which was fab, then I got poorly with an un-related illness so decided to come off it. I'd been planning to do Atkins as a maintenance programme but I've still got a couple of stones I'd like to lose.
For me personally its taken my body a long time to adjust and I ended up gaining about a stone in a couple of weeks and this is only just starting to go down even though I was in ketosis and not having anything illegal foodwise (carby) but this could be affected by the length of time I spent on lipotrim.
My advice would be to take it slowly adding a little at a time and keep it simple to start. Your stomach will have shrunk so don't just jump into big portions and eat plenty of leafy greens so you don't get constipated. As you know being on LT you don't "go" as often so if you eat loads it can cause problems with going.
Also you'll have got into the habit of drinking plenty of water. On LT I used to drink at least 4 litres a day and I've kept this up on Atkins as it helps flush away the byproducts of being in ketosis.
Hope this answers a few questions and I usually pop in here most nights if you need any help, best of luck with the switch xx