What are the benefits of the Tony Ferguson diet?

The main claimed benefits of the Tony Ferguson diet is that it is low GI, which means blood sugar should be stable throughout the day and therefore one is less likely to want to snack or cheat. The other benefits are that it is allegedly flexible in that one can choose 2 meal replacement items and 1 meal throughout the day, but there are options for each meal so one can choose which meal suits them best to eat properly.