... sorta.
Bought this suet feeder last season, but none of the birds seemed interested (new = scary I guess). This time I left it out for a couple of weeks before introducing suet (mostly because it's been too warm). A couple-a-few hours later... SUCCESS!
Update 24 October 2021: The little bastard ate ALL the suet yesterday/this morning! Might need to switch the type of cakes I put out (Mill Creek is expensive).