Upper tribunal waiting times

Just wondering what others experience of ballpark timescales for UTT cases are currently? I appreciate it will vary depending on complexity, etc., but I have one case in particular that seems to be dragging on, nothing too contentious. I replied to the DWP submission (which agreed errors of law) more than 5 months ago and not a squeak since then. Admin just tell me it is ‘with the judge’. Has anyone found a way of getting any info out of them, or know if they have any unofficial timescales for progressing things? How long is too long to wait?
Thanks