Not much to say. No more than average by today's standards. The caramelized onions are the only slightly noteworthy thing about it

It is a big boi though. Which would have been a point in its favour. But it's a wash. Because it's expensive. Very. It might actually be the most expensive burger I've ever ordered (would have to check). It's to the point where this is one of those rare cases where I'm actually deducting ½ point for price/performance deficit.

Maybe This is a remarkable burger. Remarkably not worth it.