I just think to my cobbled-together vim setup which both had a long startup and was riddled with idiosyncrasies (both I'm sure caused by my own misconfiguration).
I since have migrated to spacemacs, thinking that I could let people more competent than I do the brunt of configuration, but still I have managed to make the startup long and the experience janky.
I guess I should either spend more or less time configuring my setups...