35w is not enough, my iPad Pro 12.9" 2021 pulls 30/35w just by itself so even just charging some low powered airpods on the second port I'll be sacrificing some charging speed. What a crap product at a massively over inflated price. If each port supplied 30w each then fine, but 17.5w per port is taking the piss for what they are charging for it.
Had a quick look and I can by the Anker 60W 2-Port USB C Charger on Amazon for £49.99, still pretty compact, provides far more power and much cheaper while still being a well know brand.