Or add 5ml Maraschino

Maybe it would be better with Cachaça instead of white rum?

Eh. It's fine. But I have many more favorites that get to the head of the queue before it.

Mine was Bacardi Superior, Beefeater, &ct. It's fine, especially since I'm on a 'diet' (no wine or wine products, no aged liquor, no fun, all due to a possible MCAS condition).
The balance of the ingredients tames the gin for me, but perhaps a different combination would rate better than "Recommended". Or maybe my palate is getting jaded.