Filter might get obliterated by the Tonic, you probably need the concentration of espresso. I tried the espresso tonic thing, didn’t really get it, but then I’ve never really got any cold coffee drinks.
I've found it is super dependent on getting the right tonic. Can be good, can be real grim 😅 but I'll drink iced filter all year, over most other drinks, so I'm the other end of the temp scale!
Filter might get obliterated by the Tonic, you probably need the concentration of espresso. I tried the espresso tonic thing, didn’t really get it, but then I’ve never really got any cold coffee drinks.