My Nexus 6 screen still looks fantastic. Wish I could get a new one with an updated CPU, fingerprint reader, faster storage, better camera, and the same screen + form factor.
I miss the good ol' days when smartphone form factor wasn't expected to accommodate portable video playback as a first-class citizen. Honestly if I want to spend extended time watching a video on the go I'll carry my tablet with me =/
I find the Nexus 5 snappier than every other Android device I have used since then including powerhouses like the 5X, 6P, Note 7, and snappier than many modern iPhones I've used in my dev shop work (5S onwards, haven't tried the X).
It's only technical downside is a lower max screen brightness than other devices, but I personally prefer my screens not overpowering my eyes anyway.
So far so good for me. Their screens have minor scratches, but they have new batteries and logic boards. One has a non-working headphone jack but is otherwise fine. Wait, actually that was the fourth one, that we sent back under warranty.