The Worst Gadgets We’ve Ever Touched
theverge.com
theverge.com
My own butterfly keyboard was replaced twice, with the final version being an "improved" version according to Apple. It has worked OK for 3+ years, with no further problems other than the unpleasantly low key travel and paint wearing off.
For me the trackpad's bad palm rejection was a much bigger issue.
By the time the Lumia was released, Windows Phone was actually quite useable and snappy. It's the completely empty app ecosystem and the years of head start iOS and Android had that killed it (apps were not portable from the earlier incarnations of WinPhone).
The playbook was just a joke. No emails, no calendar, no apps. Software was incredibly buggy and it felt years behind the iPad. Actually, no, to get the calendar you had to pair it with a blackberry phone if I recall.
EDIT: Dex is looking alright these days