I found it no problem at all. I did the diet for 6 months and did not touch a drop of alcohol.
Usually I enjoy a drink while I prepare dinner but when SSing it does not bother me at all although I am cooking for the rest of the family.
I haven't had a problem with the lack of alcohol either - and I used to drink wine every day! I just find this whole thing so exciting that I dont fell like it - and it helps not having to cook, which is when I would usually have the first glass.
That said I am only on day 3 and I haven't been out yet...although I plan on designating myself as the driver to try and get round that one!