Compared to older Thinkpads, they do not have a wobbly battery or noisy fan any more, and you may still get a decent keyboard (or you may not, it's a bit of a lottery).
Thinkpads now have at-least-FHD matte displays available. And it's possible to upgrade the disk(s), RAM, and battery. The battery is now hot-swap-able, and battery models are compatible across most models covering 2 generations. I'm using both a T550, which I like, and X260, which is a PoS by design, and being able to grab any extra battery and swap it mid-way through a trip without switching the laptop off, is quite nice. Fedora is running on both without any issue.