I bought two of the Topekada 5-pack fridge locks—mainly to keep my roommate out of my stuff—and they've been solid so far. Super easy to install, took just a few minutes, and the adhesive is no joke. Once it's on, it's not coming off easily, which is what you want.
I've been using them on the fridge, freezer, and a few cabinets, and they've held up great. Definitely gives some peace of mind, especially in shared spaces. The keys all work smoothly, and I haven't had any issues with sticking or breaking. Also love that they work for other things too—I've tested one on a closet and even a window just for fun, and it held up.
So far, no more "mysteriously disappearing stuff," and that alone makes it worth it. Definitely recommend if you're living with roommates or just want to secure a few things around the house.