I haven't had these jibbitz for long so overall for now I would give them a rating of 4. The design is great for regular crocs, but for disney crocs they do not work at all. They will eventually fall out it seems, no matter what. I had read a warning that said not recommended for adult disney crocs (from the manufacturer) so I got them for my son. Within an hour one was missing. I thought it might just be the smaller ones that can fall out more easily, but have also had 2 others fall out and since then don't let him wear them. For regular crocs they are great though.
They are cute and spice up the shoes a bit if you want that and the overall price is pretty decent (unless you keep losing them, then they add up fast!). They are constructed of a rubbery material on top and so far seems nice, the bottoms are metal like but you cannot feel them. For now they are durable but I wonder how long they'll last if out in the sun and weather. we have not had them quite a month yet. The color again, is good for now, but will they fade with time?
For the $3 these cost they are worth a try and fun! We have several disney ones and a penguin which my son adores.