That's tricky! Both are fine.

I'd go for one good experience rather than one perfect and one mediocre and the additional pain of keeping both systems on par.

Usually shorter. The better is the first thing to wear out, even if it's not used much. But it often can be replaced, even if the manufacturer doesn't officially support replacement.

Ignoring that, they are still built more compact, which makes some components more prone to failure (in particular cooling). But they can still last a decade+ if taken care of and/or repaired.