My Kevo works pretty good so far. I do have a few complaints however so its by no means perfect. On the upside Ive had it a year now and I love the fact that I dont have to fumble with keys in the dark or while holding groceries. And it is pretty reliable. The downside is I sometimes have to double or even triple tap it to make it work.
I do recommend this system but be prepared for its finickiness.
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