I've got an achilles rupture so none weight bearing for quite a bit. The biggest problem I had was being able to contribute around the house and take some of the additional pressure back off the rest of the family.
The I walk will let you make a brew - and be able to deliver it! To cook while the other half does kids taxi duty for example.
I also prefer it on the stairs to the crutches. My other Achilles isnt great so its easier to both keep the weight off my injury without needing to put too much strain on my 'good' leg.
The worst part is probably the knee pressure if you have a cast that doesnt fit the curvature of the knee support well. You can put foam under your knee to reduce that tho.
It's not perfect, but I'm happy with the options Ive got for helping out at home, going for a short walk and feeling like less of a waste of space :)
If you need to keep the weight off for a bit and you cant afford to put your feet up for a few weeks then this is well worth considering to keep you moving and useful.