Would you rather him spend hundreds, if not thousands on a newer or new fridge? That thing is super cheap, works and will fit his needs.. what is wrong with that? Even if it last a year or 2, he'd still have gotten his money out of it. But since it's so simple,it'll probably last a decade.
I pull mine out once a year. The coils are underneath, not on the back. I've removed, opened, and lubricated the mechanical defrost timer a few times over the years when the gears become noisy. It wasn't top rated when I bought it, but it definitely has earned top marks from me!