Agreed on Google Voice, I used it all the way back to the Grand Central days and I wish it were maintained more. That being said, the Hangouts integration isn't that bad now. I know it feels risky to hit that 'merge to hangouts' button but I've been using it for a while without any huge inconveniences. The only problem I run in to is when I need to search for old SMS messages, the only way to do it after merging is by doing an 'in:chats searchterm' search in Gmail. That wouldn't even be so bad except that I also use Inbox and the search doesn't work in Inbox.
In theory I actually like the idea of having my SMS / Phone calls / emails / hangouts merged pretty tightly, but there are a lot of subtle ways that they could really screw up the user experience while making that happen so I'm still nervous about it.
In theory I actually like the idea of having my SMS / Phone calls / emails / hangouts merged pretty tightly, but there are a lot of subtle ways that they could really screw up the user experience while making that happen so I'm still nervous about it.