My lil Peke, age 6 months, Loves these b/c she has Sharp teeth and can chew them well. I take it she likes the flavor b/c she sucks them down when I give them to her. On the other hand, my older 12 yr old Peke, who has allot of teeth loss, can't chew them so he won't eat them when they are on the floor. So I can't say he's happy about these. They do come in heart shapes which I think is cute! I take it the flavor isn't that great for my older Peke as he won't touch them.