A cast iron pot can be an extremely handy tool to have.  It can provide a very solid and even temperature when cooking.  Some pans get hot in certain spots and not others, but cast iron does not have this problem.  It is preferred by many professional chefs because of the level of control that they can maintain with their cooking.

Cast iron cannot simply be used as is, however, without seasoning and tempering the seasoning of the pan.

The link above describes the way to temper your cast iron pot or the one you may soon buy.

Cast iron must be carefully maintained, but if proper care is taken, a good cast iron pot will be an excellent tool that is handed down from generation to generation in a family and utilized well.

It is excellent as a non-sticking pan, but only under the condition that the seasoning is tempered well on the cast iron pan.