Nice to be able to have both power cables running at the same time.
It is pretty good. 75 kW doesn't sound that much more than 50 kW, but really it cuts the charge time down by about a third. The Ioniq and Kona are some of the more popular EVs (apart from the Model 3) and are capable of utilising this speed so it is definitely worthwhile. Having both cables operating at once, even if it cuts each down to 37.5 kW each, is definitely better than having to stand and wait or find another charger.
It makes me think.. almost all EVs sold in Australia are CCS2. If these kind of chargers become more popular, does it make it more beneficial to get a Leaf, since the Chademo plug is statistically more likely to be the available plug should you run into an in-use dual cable charger?