5 year old mono minis here that have been moved from bike to bike, no more work than a bleed (and only two at that) people have different experiences of different brakes.
Three of my friends are precision engineers, they all use hope brakes and hubs. They agree the finish could be made smoother (like on the older black&gold brakes) but hope designed the grooves for aesthetic reasons (and to save money 😉 ) Hope are very well respected in the precision engineering market.