I've done IF in the past and I find it a pretty ideal solution. I think it is easier if you have a history of exercising a lot - enough to deplete your glycogen reserves - because this will train your body to utilize your fat stores more readily. I find that when I do IF, I might feel a bit peckish in the early afternoon, and then in the early evening I am quite hungry and eat dinner. I feel like it isn't a big deal, and one of the big benefits is learning to experience the sensation of hunger and accept it, rather than thinking it is an emergency.