Not for me. Had my play with pre infusion etc and didn’t like what came out. I had set a different pre infusion time but found standard was best. I need some fruity beans to see what happens with Niche and Mazzer mini. Light roasts were not a problem with Niche but could be better ?? Don’t know without other grinders to try, Some will take a while to get going.
Same with 40sec brews. Tried didn’t like. I have been known to use 20sec for my wife, Sometimes works out without changing the grind.
;) Spanners - at least there no need for them descaling, Just a screwdriver.