i saw those monkey backpack ones at the goldbug stand at baby expo - i had searched for them before but couldnt find one so ended up getting a plain baby harness from target (too many friends told me the wrist straps didnt work) eliana loves the harness & will walk really well beside me - if i try walking without the harness she is off!!! so in my case i think they are brilliant - my SIL got one for my nephew & whenever it was put on him he got down on all fours & thought he was a dog!!!!!