The old ones are good, but the newer ones are disappointing. I had a 9th gen X1 specced out and it was unusable for development. It would thermal throttle after only 2 minutes on anything more than 40% CPU. Keyboard was nice and screen was ok, but the thermals and battery life was horrible.
But why?
These points seem to mirror my experience for the most part. DuckDuckGo has also been going downhill because certain search modifiers don’t work anymore. Microsoft raised the price of API queries which in turn made it too expensive for DuckDuckGo to maintain certain ones. I mostly enjoyed it because it gives you access to Bing’s search results without the user-hostile UX garbage Microsoft loves to put on all its products. These days I’m using Kagi. It’s been about six months now and I’m really enjoying it.
I’ve been using a 12 Pro and if it wasn’t for the version number in the name I wouldn’t even be aware of its age. They are all so fast these days the battery dies long before it becomes too slow to use. If it wasn’t for CarPlay and iMessage I’d absolutely use a flip phone with Android Go or something.