I like the idea behind it in principle, since it will simplify 2FA for the masses and may lead more people to adopt it.
But, apart from that: 1. It's only on Chrome (for now(?)) 2. It's only for Google products (for now (?)) 3. It's only on Android that Google fully controls remotely (and probably it will stay there).
All these give even more power to Google at the expense of convenience and allows a single company to define "how things should be done".
And I should clarify that I am not against this tech specifically. If anything, I think Google has some of the brightest minds, so technically I'm sure that the product will be great.
The problem is that with great power comes something that Google (as a company) seems to be lacking lately.