You beat me to it. I was going to say the same thing, but not as well. One visit is fine,IMO, so long as you mention the fact in your review. It is too bad, but a lot of roadfood is so-so at best. Having worked for many years in small business myself, I think it is bad karma to post a tough review that could hurt another small bizperson. If I enjoyed my visit, even if it was only once, I’ll let you know. If it was not so hot, I keep my words to myself, and consider the fact that I may have visited on a bad day.