The first issue I ran into was wanting to learn a replacement for one of the only vim-fu’s I know, which is like ci’ to replace what’s inside single quotes on the current line. After getting help from the (super nice!) community the answer was too complex and I moved back to vim.
I imagine these types of problems generalize since everyone has their own little muscle memories and workflows. It’s hard to replace such an entrenched tool. I’m always rooting for the new underdog though.