Update 10/18/2023: After using the laptop for some time, I have finally acquired a Thunderbolt 3 device and wanted to try it out with the laptop. Unfortunately, THE THUNDERBOLT 3 PORT IS DEAD! It seems like this is a known issue with the T470 and Lenovo was repairing them for machines that were still under warranty. Now, I don't know if this seller knew that this particular laptop had a dead port or not, but it's very annoying that I bought what I expected was a fully functional laptop only to find out one of the key features, a modern Thunderbolt 3 port, does not work. BUYER BEWARE AND TEST EVERYTHING WHEN YOU GET IT. SELLER MAY BE SELLING DEFECTIVE SYSTEMS.I've been a long-time Thinkpad user. I purchased this T470 as a replacement for my aging x220. Out of the gate, the laptop worked flawlessly. The battery appears to still have plenty of life left in it and the laptop was, overall, in very good condition. I did, however, notice a small crack in the plastic near the edge of the palm rest, but it's not noticeable without very close inspection and does not impede operation at all.Purchased a secondary, internal battery for this and a second 16GB stick or RAM and now I feel like I have a brand new computer, just as capable as anything I would have purchased new but at a fraction of the price. With the secondary battery installed I am able to get upwards of 6-8hrs of battery life, no problem (was previously 3-4hrs on the included battery). I am running Debian Linux and have zero hardware compatibility issues.The 4xx series Thinkpads are the last T series to have user serviceable parts (non-soldered RAM, easily changed batteries, discrete wifi cards, upgradable SSD, etc.). Thankfully, the 4xx series, despite only being advertised with 32GB max RAM support can handle up to 64GB and, with the M.2 NVME support, I expect that this laptop will last me a very very long time.