Product review (4 stars): Holiday cooking review
With the holidays I have done quite a bit of cooking using my oven.  I have my oven rack guards in place and so far so good.  They do help to keep one from touching the racks when inserting or removing an item from a hot oven.  They were particularly helpful with the cookie baking I did and working with cookie sheets in and out of the oven.  The one comment perhaps on the down side is that it takes a while to move the pan or sheet over the guards as you place them in the oven.  This is not a big deal but rather a small learning curve.