Cute, but over time stopped working

I've had 4 of these, and one by one they all stopped working to some point. Ultrasonic is good, and the designs for kids are cute, but I haven't had one that has lasted over 2 years, maybe less.
issues included, the motor making a loud noise, cracking of the water canister. I have one last one that has a cover (the duck one) and for some reason, mist isn't coming out of it, and have to remove the ducks head. Probably soon to replace.
I have gotten cheaper and better ones on Amazon.