These are great and so much better than walking around with my pockets stuffed with old grocery bags. The dispenser is great because it hooks onto the leash and you can get a bag out one-handed if your dog is pulling, plus it seems sturdier than other bag dispensers that I've bought where the ends kept falling off after a few uses. Its weird to get complements on my dog's poo bags, but I do whenever I have this with me.
I like to take my dogs for walks in the park and this is great because it easily attaches to the leash and the bags are easy to get out of the dispenser. I have seen other bag dispensers that are more expensive, but this one is perfect and the price is great! I have also bought the refill bags and they are easy to replace.