They are good, but when you take them off, you will realise just how noisy our modern world is. (Hint: switch the active noise-cancelling off for a few seconds before taking them off, so the “passive” noise cancelling – the headphones themselves – lets some of the noise in, but not all of it.)
’Coz this is a classic written in 2008 (I think, but definitely before 2010) and Rust was first launched in 2015?