I have a Lenovo T460s running XUbuntu 16.04 and I'm extremely happy with it. I have 20GB RAM and 512GB SSD and the WHQD screen (2560x1440). Very reliable, current uptime with 4.4.0 kernel is 62 days. The only downside is somewhat poor battery life. Under heavy utilization, I get 3-4 hours out of it.