I bought this as a temporary solution until i can get a hole cut in my kitchen wall.
The hose itself is pretty good quality and managed to stand up to me pulling it around a bit to get it into place without splitting.
The box is also ok quality and doesnt look like it would split. My only problem it with the catches that hold the top of the box on. They are quite thin plastic and, while they don't look like they will break off, they do struggle to hold the lid on so you have to be a bit careful. Having said that, it's working fine for me.
The principle is simple, you just put a little bit of cold water in the bottom of the box and then start your dryer off. The water from your machine then collects in the box and the warm air escapes out of some vents in the top.
Basically a good option if you can't vent your dryer outside. Better than condensation all over the kitchen. It's a cheap product and it does the job. I don't think it would last forever though