No visual voicemail? Lame.
This, and most of the other ranting, seems to be based a lot more on "Google sux" than on "what's actually being offered here".
On the plus side, you get the international data roaming which, for some people, is REALLY nice --- land in a new country and things just work. If you travel infrequently, and have a 2018 gen iPhone [eSIM], you can get the same thing from TruPhone or GigSky (just buy a plan before the trip), but for frequent traveling Google may be more convenient.
On the ~~~ side, it may not be the cheapest option. It beats Ting, which was my previous go-to best overall MVNO, but xfinity and Spectrum Mobile look like they're cheaper if you don't use that much data per month.
Likewise, voice messages: Sure, there are those of you who use them a ton and then, yes, this is not a good plan for you. The rest of us, well, WTF cares? I certainly could live with voice messages that appear in Messages, not in Phone.
Unclear is whether the interception tech that Google is using will allow them (one way or another; there are also legal issues that complicate this) to provide much better spam call filtering. Yes yes, we all know, plenty of you don't want anyone, even robots, listening in to your calls. The rest of us, however, are quite happy to let the robots listen if it gives us REAL, FUNCTIONAL spam blocking.
On the minus side, the fact that nothing is mentioned about eSIM means that Google still hasn't got this sorted out yet, just like every other MVNO. Specifically I'm assuming it means no reasonable cost (ie ~$1 or less per month base, plus added into the overall data usage) support for things like aWatches and iPads...