My work environment consists of <UNIX-like OS> + Vim + Tmux + whatever language/domain specific tools I need for the task at hand. I'm really interested in hear

My work environment consists of <UNIX-like OS> + Vim + Tmux + whatever language/domain specific tools I need for the task at hand. I'm really interested in hearing success stories from people who were like me but switched to working in an IDE. I would like to have better auto-complete in Vim, but to a certain extent I think I might just have been too lazy to go out and find the right plugins. I'm also working on a hobby project text editor where I hope to explore this problem a bit more... but I can't deny that an effective solution would be better than my current solution which involves a lot of Googling and many open browser tabs.