We have been using the Glad Tall Kitchen Trash Bags for years and were extremely satisfied with them.  Up until recently that is.  We purchased a Mega Box of the "New Look & Feel Guaranteed Strong" bags and have had nothing but problems.  Maybe 1 out of 3 bags doesn't tear.  It's not worth the money when more than 2/3 of the box is going in to the trash.  Very disappointing.