A friend in the cycling club has one of their groupsets (and I think he’s just fitted LTwoo eRX with hydro brakes to a new bike).
So far I think it’s just a case of no news is good news. They’re just working as expected.
Can’t remember if it was Sensah or LTwoo that had the issues with the carbon shifter paddles wearing against the ratchet pawl but they seemed to fix it pretty quickly.
I’ve used off-brand cassettes and they’re not as good, and even FSA chainrings were pretty rubbish for shifting compared to shimano or even SPA cycles. So I’d get a 105 chain and cassette at least, that’s where the actual shifting performance is.