Both my WD 4TB Reds had smart errors a few months within 3 year warranty. Hermes lost and then found one of them (please, don't use Hermes) so both of my current Reds are replaced ones, they are red but the sticker on it is black.. so maybe factory refurbished, they work fine and quiet.
I use WD Greens as backup, one of those recently got 1 single CRC and smart error, so make of that what you will, I can't 100% rely on that drive anymore so don't put anything important on it. Those must be about 3 years old too, but not much power cycle or up time. I'd go reds again, anything with a long warranty, but prices have gone up slightly over 3 years.
I'd like to go NAS 8TB mirror simply to take the noise away from my PC but prices prevent me.