Promising

Although it still lacks some functions, such as a proper ADSense support, it does a good job, and the authors provide a great support. Yet, if you think this is a click-and-go solution you would probably be disappointed, in order to make it works properly, a bit of tweaking and a full understanding on how AMP works is required. (which is normal, IMHO)
For being in an early stage of development, it looks very promising.