I think they have heating problems because they are pushing the limits of what can be done in their form factor: They get extremely hot under load because they'

I think they have heating problems because they are pushing the limits of what can be done in their form factor: They get extremely hot under load because they're small and the fans are on the bottom, so there's a good chance they're blocked and will overheat. I have experienced this myself. It will be interesting to see what happens in a few years of use. I wouldn't be shocked if it died - but if it did, I still might get another one. I already replace my laptop every ~3 years anyway, and the benefits it provides in terms of form factor and capability are substantial.