Also, in case it seems like I’m ragging on Avio: I think what they’ve achieved so far with a handful of people is impressive even though the early results aren’t fantastic. As Ray Maker observed in a recent podcast, Stages (I think) said that when you’ve made 1000 power meters you realise that you didn’t know how to make 100, and when you’ve made 10,000 you realise that you didn’t know how to make 1000 and so on. Of course, I don’t make these things myself so maybe I’m just naively optimistic 
but I think the future might be bright as long as they keep up the support and development.