Lenovo Thinkpads Missing Keypresses

I've had a Thinkpad X1 Extreme for a year. I love a lot about this machine, but I had to send it back for repairs (essentially replacement) twice. The first time, the keyboard was flaking out; the GHB keys around the mouse nub were repeating and/or not registering, then the machine started crashing/rebooting randomly, and finally it crashed during a BIOS upgrade and bricked itself. They replaced basically the entire machine (possibly re-used the display), and it seemed fine, until I tried to run a game on it. Then I realized that the Nvidia graphics weren't working at all; only the Intel HD graphics worked. This was a hardware issue, not simply a driver problem. They replaced the entire motherboard again. Both times I lost a full two days installing and configuring the replacement system.

It's working great now, for the moment, and I still haven't seen a better laptop option, but I'm going to be hesitant to buy any more Lenovo products. Between wrestling with the broken machines and then waiting on repairs, I lost months of usability. Now my warranty is expired, I wasn't able to extend it (their warranty extension policy seems intentionally designed to prevent you extending), and if it bricks again, I've got a $2800 (original price) doorstop.

When it works, it's the best laptop I've ever owned. Here's hoping I get at least another year out of it.