Yes, 3g is usable, I can browse any site without noticeable delays. But Slack experience is extremely poor. It require a really fast and low-latency connection.

Yes, 3g is usable, I can browse any site without noticeable delays. But Slack experience is extremely poor. It require a really fast and low-latency connection. And just for a text chat - there're tons of other solutions that has no problem with the latency and bandwidth of 3G or even Edge. But I'm forced to use Slack. :(