The restaurant was really laden with people, so we had to wait at the bar - but fortunately, some tables on the patio opened up within just a couple of minutes. the patio is nice, in a calm side street. I greatly enjoyed my escalopes de veau, and wine in the region is always amazing.
For us, service was as you would hope for. But we did see the waitress drop stuff on our neighbour twice, so when I was deliberating whether I would give a 3-star or a 4-star rating, I went with the 3... But don't let that deter you! If you want French cuisine in Blois, but you want to avoid an overload of (other) tourists, go to Poivre & Sel.