Google AMP:

1. Obscures the web page's URL.

2. Makes manual zoom in/out impossible.

3. Sometimes hides content mentioned in the article, with no ability to scroll horizontally to see it.

4. Confuses Chrome on Amdroid into over-hiding its top address/menu bar (forcing two swipes down all the way to the top to show) or forces it to show (won't hide on scroll down).

This is just coming from a user's perspective, fortunately it doesn't impact my work, but may in future websites I build due to it being almost 100% of the news articles I read.