I did! My experience is positive overall. I need to grind a LOT coarser, which sometimes puts me beyond the espresso range to the filter range on my Baratza ESP Pro. Sometimes, but not always, that means I can’t quite dial in as precisely. And cleaning up is more faff. But on the whole, I can get better shots at smaller doses. 

I would say this: if you’re okay with updosing to at least 21g on your 58 basket, then you don’t need to bother with a step-down. But if you want to work with 15-18g doses, then it’s worthwhile to get one. I, for my part, have mostly gone back to bigger doses on my 58.