Rob, that’s the Crumble Dryer, as you have so eloquently put it, isn’t it?
For me, the worst washing machine we’ve had is the Bosch WFF… something or other from 1999. Mum hated it. It was slow, boring, very inflexible in terms of options, would not rinse properly and would leave undissolved powder and conditioner on the clothes (despite doing five rinses), had an easily defeated door seal – the dog leaning on it would cause water to dribble out from the door – and it was… oh… such a waste of money. It was reduced from about £500, but I wish I’d gone for a Hotpoint or suchlike.
The next worse machine was the Hotpoint/Indesit washer dryer we had in 2006. It lasted two months before the power module failed with a crackle and a fizz.
That was replaced with our Miele Premier 520, which has… um… had two service calls on it already. One was for a noisy valve (the one that switches between the compartments) and then a new computer two weeks ago, which caused the machine to abort during a final spin! LOL

The machine was seemingly working fine, but we called Miele out anyway. They said the machine was not responding to diagnostics, so they replaced the computer.
It’s a very good machine, though, despite these two hiccups.

Having said that, even our Miele tumble dryer had to have a new computer and major parts fitted, costing over £400 last year! LOL
All repairs were done under warranty, thankfully.
