Wasn't sure what to expect buying a refurbished laptop from a third party seller, but this one arrived in like-new condition. Pretty much unblemished and I actually got slightly better specs than advertised!The T490 is a good model to buy used because it retains the upgradable RAM and storage. The T490 also uses Whiskey Lake CPUs which have hardware mitigations for meltdown and spectre (unlike the Kaby-Lake-R CPUs used in the T480), so the negative performance impacts from patching these vulnerabilities in software is somewhat reduced. This was a major deciding factor for me choosing the T490 over the T480 (although the T480 has more drive slots and has two RAM slots instead of one, which some users may prefer for extra expandability if they want to install multiple drives. The T490 only has one drive slot and one upgradable RAM slot, but it noticeably thinner and lighter and still allows you to upgrade if you choose.)Overall this is a pretty good thinkpad to buy used. It has a 1080p screen also, which is important to look for if you're buying thinkpads refurbished like this (not sure why Lenovo still made some with 1366x768 displays, but these should be avoided like the plague. They are terrible screens and are far-inferior to the 1080p IPS displays used here.)