Mosh always seems oddly slow. I have a good connection to most of my servers (under 10ms to many, under 100ms to all)... and it just feels laggy, in vim sessions, in tmux scrollback, everywhere. I find just a vanilla ssh (with tmux always) to be far superior in terms of latency.

I love the idea of mosh, but I find the implementation to be lacking... or I am doing it wrong. :)