This is the mode that made the whole structural editing stick for me. Tried paredit and then lispy but never got the hang of it. With this one I find that I try to use it all the time even in modes where I do not have it set up.
There's some interesting stuff going on with structural editing of Lisp. I stumbled across parinfer[1] a month or so ago and it looks neat.<p>[1] <a href="https://shaunlebron.github.io/parinfer/" rel="nofollow">https://shaunlebron.github.io/parinfer/</a>
As an evil-mode user who switches between editing python and lisp semi-regularly I find adjust-parens with << and >> bound to adjust-parens indent/dedent functions to be the least harmful to my muscle memory.
Structural editing is something that seems like a great idea to me but that I feel wouldn’t work for me in practice. The context sensitivity of actions would drive me crazy. While it’s smart, I feel as though I prize consistency over cleverness in this regard since it makes it easier to make the usage of the commands second nature, but maybe I’d get used to the context sensitivity just the same.