Great bags! Tough, large enough, light smell, EASY TO OPEN (Thank you!), post-consumer cardboard core (instead of plastic).
Dispenser is slightly (sliiiiightly) textured and easy to grip (won't slip in your hand while using it).
Carabiners, for me, tend to hook open and hook part of the leash if it twists up, so here's a tip: use a key ring! The metal loop keeps the dispenser parallel to the ground and it won't fall off.
For reference: I have a 7 year old, 60 lbs, American Staffordshire Terrier (Amstaff) - they bags 'accommodate' her waste (think around the size of an orange or softball, depending) and with length left no protect your hand and tie easily (I can do it with one hand).