I've bought Ziploc brand bags for years and have been very happy with them. I have hand issues and find that the slider bags are the easiest for me to use, and I'm willing to pay extra for this ease of use. However, lately, I've been very unhappy with the quality! After one or two times of opening/closing the bag, the plastic slider comes off and the bag is useless. The slider seems to be flimsy and of very poor quality.