Pros: Very pliable and a package lasts a long time.
Cons: Cats don't care for them, but got around that!
These pockets have been a lifesaver for me. My cat is impossible to pill, and now because of an enlarged heart must take lasix daily. Plus I didn't want to stress him out every day pilling him. I tear a small piece of the pill pocket off, just enough to cover the pill, and press or 'cement' it to a treat that he really likes. (and THAT can change daily!) I give him one untreated one first to 'prime the pump' and he then gobbles up the treated one. Works like a charm! (so far for 6 months now!) Doing it this way means you can change to what ever they will eat at the time.