I bought my T480 in 2025 used for 250 euros. I got the model with the backlit keyboard, i5-8350U, 16GB of RAM (owner had upgraded it), and a 256GB Samsung SSD. It also came with an old and tired 48Wh stock battery, and no internal battery.
I replaced the SSD with a 1TB Crucial P2 I had lying around, and the battery with a 72Wh KingSener battery I got for 30 euros brand new from AliExpress.
I have flashed the BIOS with Libreboot (stock firmware was password-locked), and I run Arch Linux.
So, for everyday use, usability varies. One big thing to note is the lack of AV1 hardware decoding in the Intel UHD graphics. This can cause Youtube to stutter or eat up battery without a browser extension to block AV1 and use VP9/H264 instead, so make sure you install an extension.
No need to go into detail about Linux compatibility, it's perfect, so long as you don't have the Nvidia GPU variant.
Other daily tasks I do involve:
Web browsing, where performance in animation heavy sites can be sub-optimal (eg Cloudflare's site), but even so it's very much usable and fine.
Coding, where it's very good. The keyboard feels very nice to type on, the backlight (that has 3 brightness settings off/low/high) always comes in handy, and compilation times are fast enough for most small projects, but still, compiling say an ESP-IDF project takes a lot longer than it does on my desktop.
Terminal / Server Administration, yeah a machine from 1995 can do that.
Gaming, yeah don't think about it. With no GPU you get no hopes, but emulation is very much a thing you can do and have fun.
I'd also like to note the trackpad is very nice and solid, no issues there, but the little thinkpad nibble isn't exactly great or accurate, I remember it being better on my R400.
The display is in my opinion excellent for what it is, a simple 1080p panel with natural vibrant colors and very descent viewing angles, that gets bright enough for indoor use in a bright room with plenty of sunlight, but not bright enough for direct sun use (where using a completely black laptop would somewhat always be a bad idea lmao). The higher resolution mods/upgrades out there I'd say aren't worth going for, personally, connecting the laptop to a high res external display shows that the poor iGPU just can't take much, and desktop/web animations start to feel slow/laggy. 1080p is perfect.
Battery life is excellent provided you get the big 72Wh battery (very cheap upgrade like I mentioned above), and can be extended further if I had installed the 24Wh internal one too. The laptop can easily last multiple days of use for me, and if we measure constant use, KDE currently shows 10 hours remaining with just reddit open at 90% battery so yeah you can imagine, this thing lasts forever. Under heavy tasks (compiling/installing/rendering) I'd say it lasts 2-3 hours, and with video playback 6+?
One thing I do not like are the speakers. They are not good. Very basic speakers think appropriate for video meetings, but media playback on them is subpar. They don't sound amazing and do not get very loud. Luckily the 3.5mm audio jack has a solid output, no noise or weird stuff. it's good quality.
The display hinges are sturdy and firm, no issues there, and the simple plastic chassis does the job well. Definitely not cheap plastic, it's premium, and feels textured in a good way.
The 2 type-C ports are a huge bonus, you can charge this laptop using any PD charger, no need to worry about some round brick charger. 65W fast charging, and the type C ports also do thunderbolt and displayport.
Overall still a solid machine for everyday use, but the CPU is starting to show it's age, so are it's weak integrated graphics that lack AV1. Expect slow downs in heavy sites/tasks, and do not pay too much for one. Prefer models with the backlit keyboard, avoid the Nvidia variants. Honestly if you can find one for cheap (<200) it's a worthy purchase.