I finally fitted the 1x11 sensah groupset that I got off AliExpress. Spent the day going round Ashridge estate with my 8 year old and I can give it the highest possible praise for a groupo costing just north of a ton. It’s totally fine.
It has a sram- type double tap lever which I find a bit odd (never having sram before), but aside from that it’s totally functional, shifts well, comfortable hoods, goes from 11t to 46t on the back, and is exactly like dura ace except not as heavy.
Can’t talk to longevity, but it’s possibly right up there with microshift and sora.