All fine and dandy until you start realizing that it does an ok job seeing warm air intrusions. Amounts may be off a lot of times, but for us, it does hold weight... have seen it many times. You cannot ignore it. I do not think it is in its wheelhouse yet, but pretty close and probably we can really weight it more tonight. Already though, it should give pause. It is a completely viable option. We live in a place where it is super hard to get good clean snow from start to end.. we do mixing very well.. so don't be so sure.