I tested :terminal but I still prefer my tmux + vim config (seems more productive). But, I have to say that for ssh connections this will be really useful.
I'm psyched about what this means for debugger integration!
That would be amazing - I use tmux + vim, and the one thing it's lacking is debugger integration.
I personally didn't like how :terminal was implemented. The keystrokes are not intuitive at all. Sure, I could remap some keys around, but what's the point?!
Tmux + Vim is just better.