Not grandparent, but I use it every day. It's definitely the buggiest message client I've ever used. Maybe it's because I'm using Safari, rather than Chrome, but problems within the last few months of use include:
* long load times, sometimes I have to retry 15 minutes later. everything else works.
* often shows week old conversations when I open it fresh, eventually updating when it feels like it
* sometimes doesn't scroll to new messages, forcing me to manually scroll, even after page reload
* absolutely massive memory usage (685 Mb for that tab, seriously wtf)
* "open in a popup" used to be extremely buggy, but now it doesn't function at all, not being an actual detached window.
Interesting. One of the small offices I know who’s using spaces with about 30-40 people hasn’t had any complaints except the lack of scheduled do not disturb.
The integration right next to email and calendar that are always open anyway have been very natural, but this isn’t a software company where people are always on it.
The new Workspace suite has a big sidebar where you quickly toggle between Mail, Chat and Spaces (chat rooms/channels). Notifications for all are in one place.
You naturally have everybody in the company available and built in Google Drive/Office integrations are really solid.
The Google Chat iOS app just has Chat and Spaces separated for you too.
I was really surprised at the level of improvement because I needed to find them a chat option with a BAA for compliance, so a good enough solution that was already built in was helpful.
I don’t think it would be good enough for power users or fully remote companies yet, but small-medium businesses who are primarily in office get a solid win.