We were actually disappointed in the cheese factory tour we took. I think there were two possibilities, one in Moleson, which I think may be the best. We arrived about noon and found the tour was at 10:00 am. We went to Gruyere and walked around the castle. Gruyere was a cute village and probably would be great for fondue or raclette. The cheese tour was less authentic.
The one we were on was very automated. We just walked through on a raised walkway behind glass and read information and looked down at the process. I can't really remember samples, but I suspect there were some.
As far as the chocolate factory tour, that was very good. We went to the Swiss village of Broc, which had a wonderful smell of chocolate in the air. Then we went to the Calliers/Nestle Chocolate Factory, watched a video on "The Love of Chocolate". There is also one on the making of chocolate, but we missed it and didn't feel like going back. We had a short English tour. After the tour we were ushered into a room where we could eat all the chocolate we wanted. All kinds; dark (my favorite), milk, white, with all kinds of nuts, fillings, etc. It was wonderful!