I created my own room correction filters for Roon using Room EQ wizard freeware and a $100 minidsp mike using an online guide. I apply the room correction then add additional eq filters to season to taste. Results can be tuned in perfectly to personal preference this way. You just have to get up the initial learning curve and experiment a bit at first. Perhaps the best tweak ever for less than $1k. We are talking total transformation as needed.
One of my rooms required very little adjustment but others quite a bit. Just using the mic and REW to get a handle on what issues your room has alone is a worthwhile learning experience that can help one make wiser decisions moving forward. I suspect there are many out there who would care but have no way of knowing to what extent their room as opposed to the equipment itself is determining what they hear.