Read your dishwasher manual as many have filters and arms that need to be periodically cleaned by the owner or else the dishwasher won't work properly.
I don't think F&P was well managed. Many F&P fridges were designed noisy because the evaporation tray sits loosely on top of the compressor and when the compressor vibrates the two hum loudly from vibrating against each other. You could make many fridges quieter just by stopping the tray vibrations.
Sometimes oven clock problems are caused by software issues in the oven. If the oven is powered down and the software rebooted the clock may start working again.
Pyrolytic cleaning means an oven becomes very, very hot. What that does to an oven's longevity I don't know but it doesn't sound good. There has been a spate of hot glass explosions from the front of pyrolytic ovens when in cleaning mode so keep at a safe distance.
It is not just Smeg that is overpriced but whiteware across the board is usually very overpriced in New Zealand. One Miele oven is over $7,000 more expensive in New Zealand than in Germany. Prices can differ greatly like the Simpson 63K914 which is currently $1099 at Mitre 10 but $1,819 elsewhere. Warranties can be short too except the likes of Asko, Ariston and AEG branded ovens which come with 5 year warranties and may sometimes be available on sale.