i use chordify a LOT. often there aren't chords online for songs i want. when i first tried chordify i didn't know what to do with it, it came up with lots of chords and if you follow it literally it oftentimes is way off. i raised the issue on the seasons and people told me to use the chords it comes up with, as a starting point to working the song out. obviously you're mostly looking for repeating patterns of chords, if you look for those, and simplify down, and be prepared to make a minor chord a major, and vice versa, sometimes, then it's very useful. i would struggle to work out the chords to a song completely from scratch on my own, but chordify gives me a starting point to work from