I like best that it’s one stop, i.e. there’s no mixing, it’s good for your nose, it’s sterile. It provides peace of mind for all those reasons. Secondly, I like the convenience. The design of the bag is great, it’s not too big but sizeable enough that you’re not replacing it all of the time, it’s portable and the spout makes it easy with no mess. The plastic bottle is ergonomic and good quality, really easy to use and lasts. It’s a very well made product from both a quality standpoint and on the ease of use side. I will continue to get this product.